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avatar Dean
/
Bookdata-tools
mirror of https://github.com/BoiseState/bookdata-tools

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1056 
  1. <!DOCTYPE html>
    2. 

  2. <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head>
    3. 

  3. 

  4. <meta charset="utf-8">
    5. 

  5. <meta name="generator" content="quarto-1.3.450">
    6. 

  6. 

  7. <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
    8. 

  8. 

  9. 

  10. <title>Book Data Tools – loc</title>
    11. 

  11. <style>
    12. 

  12. code{white-space: pre-wrap;}
    13. 

  13. span.smallcaps{font-variant: small-caps;}
    14. 

  14. div.columns{display: flex; gap: min(4vw, 1.5em);}
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  21.   vertical-align: middle;
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  23. </style>
    24. 

  24. 

  25. 

  26. <script src="../site_libs/quarto-nav/quarto-nav.js"></script>
    27. 

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  29. <script src="../site_libs/quarto-search/autocomplete.umd.js"></script>
    30. 

  30. <script src="../site_libs/quarto-search/fuse.min.js"></script>
    31. 

  31. <script src="../site_libs/quarto-search/quarto-search.js"></script>
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  32. <meta name="quarto:offset" content="../">
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  33. <script src="../site_libs/quarto-html/quarto.js"></script>
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  34. <script src="../site_libs/quarto-html/popper.min.js"></script>
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  35. <script src="../site_libs/quarto-html/tippy.umd.min.js"></script>
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  36. <script src="../site_libs/quarto-html/anchor.min.js"></script>
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  37. <link href="../site_libs/quarto-html/tippy.css" rel="stylesheet">
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  38. <link href="../site_libs/quarto-html/quarto-syntax-highlighting.css" rel="stylesheet" class="quarto-color-scheme" id="quarto-text-highlighting-styles">
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  43. <link href="../site_libs/bootstrap/bootstrap-dark.min.css" rel="prefetch" class="quarto-color-scheme quarto-color-alternate" id="quarto-bootstrap" data-mode="dark">
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  49.   "type": "textbox",
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  53.     "search-matching-documents-text": "matching documents",
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  54.     "search-copy-link-title": "Copy link to search",
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  55.     "search-hide-matches-text": "Hide additional matches",
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  56.     "search-more-match-text": "more match in this document",
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  57.     "search-more-matches-text": "more matches in this document",
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  59.     "search-detached-cancel-button-title": "Cancel",
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  60.     "search-submit-button-title": "Submit",
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  61.     "search-label": "Search"
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    64. 

  64. <script src="../site_libs/quarto-diagram/mermaid.min.js"></script>
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  65. <script src="../site_libs/quarto-diagram/mermaid-init.js"></script>
    66. 

  66. <link href="../site_libs/quarto-diagram/mermaid.css" rel="stylesheet">
    67. 

  67. 

  68. 

  69. <link rel="stylesheet" href="../tweaks.css">
    70. 

  70. </head>
    71. 

  71. 

  72. <body class="nav-sidebar floating">
    73. 

  73. 

  74. <div id="quarto-search-results"></div>
    75. 

  75.   <header id="quarto-header" class="headroom fixed-top">
    76. 

  76.   <nav class="quarto-secondary-nav">
    77. 

  77.     <div class="container-fluid d-flex">
    78. 

  78.       <button type="button" class="quarto-btn-toggle btn" data-bs-toggle="collapse" data-bs-target="#quarto-sidebar,#quarto-sidebar-glass" aria-controls="quarto-sidebar" aria-expanded="false" aria-label="Toggle sidebar navigation" onclick="if (window.quartoToggleHeadroom) { window.quartoToggleHeadroom(); }">
    79. 

  79.         <i class="bi bi-layout-text-sidebar-reverse"></i>
    80. 

  80.       </button>
    81. 

  81.       <nav class="quarto-page-breadcrumbs" aria-label="breadcrumb"><ol class="breadcrumb"><li class="breadcrumb-item"><a href="../data/index.html">Data Organization</a></li><li class="breadcrumb-item"><a href="../data/loc.html">Library of Congress</a></li></ol></nav>
    82. 

  82.       <a class="flex-grow-1" role="button" data-bs-toggle="collapse" data-bs-target="#quarto-sidebar,#quarto-sidebar-glass" aria-controls="quarto-sidebar" aria-expanded="false" aria-label="Toggle sidebar navigation" onclick="if (window.quartoToggleHeadroom) { window.quartoToggleHeadroom(); }">      
    83. 

  83.       </a>
    84. 

  84.       <button type="button" class="btn quarto-search-button" aria-label="" onclick="window.quartoOpenSearch();">
    85. 

  85.         <i class="bi bi-search"></i>
    86. 

  86.       </button>
    87. 

  87.     </div>
    88. 

  88.   </nav>
    89. 

  89. </header>
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  90. <!-- content -->
    91. 

  91. <div id="quarto-content" class="quarto-container page-columns page-rows-contents page-layout-article">
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  92. <!-- sidebar -->
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  93.   <nav id="quarto-sidebar" class="sidebar collapse collapse-horizontal sidebar-navigation floating overflow-auto">
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  94.     <div class="pt-lg-2 mt-2 text-left sidebar-header">
    95. 

  95.     <div class="sidebar-title mb-0 py-0">
    96. 

  96.       <a href="../">Book Data Tools</a> 
    97. 

  97.         <div class="sidebar-tools-main">
    98. 

  98.   <a href="" class="quarto-color-scheme-toggle quarto-navigation-tool  px-1" onclick="window.quartoToggleColorScheme(); return false;" title="Toggle dark mode"><i class="bi"></i></a>
    99. 

  99. </div>
    100. 

  100.     </div>
    101. 

  101.       </div>
    102. 

  102.         <div class="mt-2 flex-shrink-0 align-items-center">
    103. 

  103.         <div class="sidebar-search">
    104. 

  104.         <div id="quarto-search" class="" title="Search"></div>
    105. 

  105.         </div>
    106. 

  106.         </div>
    107. 

  107.     <div class="sidebar-menu-container"> 
    108. 

  108.     <ul class="list-unstyled mt-1">
    109. 

  109.         <li class="sidebar-item">
    110. 

  110.   <div class="sidebar-item-container"> 
    111. 

  111.   <a href="../index.html" class="sidebar-item-text sidebar-link">
    112. 

  112.  <span class="menu-text">Overview</span></a>
    113. 

  113.   </div>
    114. 

  114. </li>
    115. 

  115.         <li class="sidebar-item sidebar-item-section">
    116. 

  116.       <div class="sidebar-item-container"> 
    117. 

  117.             <a href="../using/index.html" class="sidebar-item-text sidebar-link">
    118. 

  118.  <span class="menu-text">Importing</span></a>
    119. 

  119.           <a class="sidebar-item-toggle text-start" data-bs-toggle="collapse" data-bs-target="#quarto-sidebar-section-1" aria-expanded="true" aria-label="Toggle section">
    120. 

  120.             <i class="bi bi-chevron-right ms-2"></i>
    121. 

  121.           </a> 
    122. 

  122.       </div>
    123. 

  123.       <ul id="quarto-sidebar-section-1" class="collapse list-unstyled sidebar-section depth1 show">  
    124. 

  124.           <li class="sidebar-item">
    125. 

  125.   <div class="sidebar-item-container"> 
    126. 

  126.   <a href="../using/setup.html" class="sidebar-item-text sidebar-link">
    127. 

  127.  <span class="menu-text">Environment Setup</span></a>
    128. 

  128.   </div>
    129. 

  129. </li>
    130. 

  130.           <li class="sidebar-item">
    131. 

  131.   <div class="sidebar-item-container"> 
    132. 

  132.   <a href="../using/storage.html" class="sidebar-item-text sidebar-link">
    133. 

  133.  <span class="menu-text">Data Storage</span></a>
    134. 

  134.   </div>
    135. 

  135. </li>
    136. 

  136.           <li class="sidebar-item">
    137. 

  137.   <div class="sidebar-item-container"> 
    138. 

  138.   <a href="../using/sources.html" class="sidebar-item-text sidebar-link">
    139. 

  139.  <span class="menu-text">Source Data</span></a>
    140. 

  140.   </div>
    141. 

  141. </li>
    142. 

  142.           <li class="sidebar-item">
    143. 

  143.   <div class="sidebar-item-container"> 
    144. 

  144.   <a href="../using/running.html" class="sidebar-item-text sidebar-link">
    145. 

  145.  <span class="menu-text">Running the Tools</span></a>
    146. 

  146.   </div>
    147. 

  147. </li>
    148. 

  148.       </ul>
    149. 

  149.   </li>
    150. 

  150.         <li class="sidebar-item sidebar-item-section">
    151. 

  151.       <div class="sidebar-item-container"> 
    152. 

  152.             <a href="../data/index.html" class="sidebar-item-text sidebar-link">
    153. 

  153.  <span class="menu-text">Data Organization</span></a>
    154. 

  154.           <a class="sidebar-item-toggle text-start" data-bs-toggle="collapse" data-bs-target="#quarto-sidebar-section-2" aria-expanded="true" aria-label="Toggle section">
    155. 

  155.             <i class="bi bi-chevron-right ms-2"></i>
    156. 

  156.           </a> 
    157. 

  157.       </div>
    158. 

  158.       <ul id="quarto-sidebar-section-2" class="collapse list-unstyled sidebar-section depth1 show">  
    159. 

  159.           <li class="sidebar-item">
    160. 

  160.   <div class="sidebar-item-container"> 
    161. 

  161.   <a href="../data/ids.html" class="sidebar-item-text sidebar-link">
    162. 

  162.  <span class="menu-text">Common Identifiers</span></a>
    163. 

  163.   </div>
    164. 

  164. </li>
    165. 

  165.           <li class="sidebar-item">
    166. 

  166.   <div class="sidebar-item-container"> 
    167. 

  167.   <a href="../data/loc.html" class="sidebar-item-text sidebar-link active">
    168. 

  168.  <span class="menu-text">Library of Congress</span></a>
    169. 

  169.   </div>
    170. 

  170. </li>
    171. 

  171.           <li class="sidebar-item">
    172. 

  172.   <div class="sidebar-item-container"> 
    173. 

  173.   <a href="../data/openlib.html" class="sidebar-item-text sidebar-link">
    174. 

  174.  <span class="menu-text">OpenLibrary</span></a>
    175. 

  175.   </div>
    176. 

  176. </li>
    177. 

  177.           <li class="sidebar-item">
    178. 

  178.   <div class="sidebar-item-container"> 
    179. 

  179.   <a href="../data/viaf.html" class="sidebar-item-text sidebar-link">
    180. 

  180.  <span class="menu-text">VIAF</span></a>
    181. 

  181.   </div>
    182. 

  182. </li>
    183. 

  183.           <li class="sidebar-item">
    184. 

  184.   <div class="sidebar-item-container"> 
    185. 

  185.   <a href="../data/bx.html" class="sidebar-item-text sidebar-link">
    186. 

  186.  <span class="menu-text">BookCrossing</span></a>
    187. 

  187.   </div>
    188. 

  188. </li>
    189. 

  189.           <li class="sidebar-item">
    190. 

  190.   <div class="sidebar-item-container"> 
    191. 

  191.   <a href="../data/amazon.html" class="sidebar-item-text sidebar-link">
    192. 

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    295. 

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    296. 

  296.  <span class="menu-text">GitHub repository</span></a>
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  302. <div id="quarto-sidebar-glass" data-bs-toggle="collapse" data-bs-target="#quarto-sidebar,#quarto-sidebar-glass"></div>
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  303. <!-- margin-sidebar -->
    304. 

  304.     <div id="quarto-margin-sidebar" class="sidebar margin-sidebar">
    305. 

  305.         <nav id="TOC" role="doc-toc" class="toc-active">
    306. 

  306.     <h2 id="toc-title">On this page</h2>
    307. 

  307.    
    308. 

  308.   <ul>
    309. 

  309.   <li><a href="#library-of-congress" id="toc-library-of-congress" class="nav-link active" data-scroll-target="#library-of-congress">Library of Congress</a>
    310. 

  310.   <ul class="collapse">
    311. 

  311.   <li><a href="#import-steps" id="toc-import-steps" class="nav-link" data-scroll-target="#import-steps">Import Steps</a></li>
    312. 

  312.   <li><a href="#sec-marc-format" id="toc-sec-marc-format" class="nav-link" data-scroll-target="#sec-marc-format">Raw MARC data</a></li>
    313. 

  313.   <li><a href="#extracted-book-tables" id="toc-extracted-book-tables" class="nav-link" data-scroll-target="#extracted-book-tables">Extracted Book Tables</a></li>
    314. 

  314.   </ul></li>
    315. 

  315.   </ul>
    316. 

  316. <div class="toc-actions"><div><i class="bi bi-github"></i></div><div class="action-links"><p><a href="https://github.com/PIReTship/bookdata-tools/edit/main/docs/data/loc.qmd" class="toc-action">Edit this page</a></p><p><a href="https://github.com/PIReTship/bookdata-tools/issues/new" class="toc-action">Report an issue</a></p></div></div></nav>
    317. 

  317.     </div>
    318. 

  318. <!-- main -->
    319. 

  319. <main class="content" id="quarto-document-content">
    320. 

  320. 

  321. 

  322. 

  323. <section id="library-of-congress" class="level1">
    324. 

  324. <h1>Library of Congress</h1>
    325. 

  325. <p>One of our sources of book data is the Library of Congress <a href="https://www.loc.gov/cds/products/MDSConnect-books_all.html">MDSConnect Books</a> bibliography records.</p>
    326. 

  326. <p>We download and import the XML versions of these files.</p>
    327. 

  327. <p>Imported data lives under the <code>loc-mds</code> directory.</p>
    328. 

  328. <div class="cell">
    329. 

  329. <div class="cell-output-display">
    330. 

  330. <div>
    331. 

  331. <div>
    332. 

  332. <pre class="mermaid mermaid-js">erDiagram
    333. 

  333.     book-ids |o--|{ book-fields : contains
    334. 

  334.     book-ids ||--o{ book-isbns : ""
    335. 

  335.     book-ids ||--o{ book-isbn-ids : ""
    336. 

  336.     book-ids ||--o{ book-authors : ""
    337. 

  337. </pre>
    338. 

  338. </div>
    339. 

  339. </div>
    340. 

  340. </div>
    341. 

  341. </div>
    342. 

  342. <section id="import-steps" class="level2">
    343. 

  343. <h2 class="anchored" data-anchor-id="import-steps">Import Steps</h2>
    344. 

  344. <p>The import is controlled by the following DVC steps:</p>
    345. 

  345. <dl>
    346. 

  346. <dt><code>scan-books</code></dt>
    347. 

  347. <dd>
    348. 

  348. Scan the book MARC data from <code>data/loc-books</code> into Parquet files (described in <a href="loc-mds-raw">book data</a>).
    349. 

  349. </dd>
    350. 

  350. <dt><code>book-isbn-ids</code></dt>
    351. 

  351. <dd>
    352. 

  352. Resolve ISBNs from LOC books into <a href="isbn-id">ISBN IDs</a>, producing <a href="../data/loc.html#file:loc-mds/book-isbn-ids.parquet"><code>loc-mds/book-isbn-ids.parquet</code></a>.
    353. 

  353. </dd>
    354. 

  354. <dt><code>book-authors</code></dt>
    355. 

  355. <dd>
    356. 

  356. Extract (and clean up) author names for LOC books.
    357. 

  357. </dd>
    358. 

  358. </dl>
    359. 

  359. </section>
    360. 

  360. <section id="sec-marc-format" class="level2">
    361. 

  361. <h2 class="anchored" data-anchor-id="sec-marc-format">Raw MARC data</h2>
    362. 

  362. <p>When importing MARC data, we create a “fields” file that contains the data exactly as recorded in MARC. We then process this data to produce additional files. One of these MARC field files contains the following columns (defined by <a href="../apidocs/bookdata/marc/flat_fields/struct.FieldRecord.html"><code>FieldRecord</code></a>):</p>
    363. 

  363. <dl>
    364. 

  364. <dt><code>rec_id</code></dt>
    365. 

  365. <dd>
    366. 

  366. The record identifier (generated at import)
    367. 

  367. </dd>
    368. 

  368. <dt><code>fld_no</code></dt>
    369. 

  369. <dd>
    370. 

  370. The field number. This corresponds to a single MARC field entry; rows in this table containing data from MARC subfields will share a <code>fld_no</code> with their containing field.
    371. 

  371. </dd>
    372. 

  372. <dt><code>tag</code></dt>
    373. 

  373. <dd>
    374. 

  374. The MARC tag; either a three-digit number, or -1 for the MARC leader.
    375. 

  375. </dd>
    376. 

  376. <dt><code>ind1</code>, <code>ind2</code></dt>
    377. 

  377. <dd>
    378. 

  378. MARC indicators. Their meanings are defined in the MARC specification.
    379. 

  379. </dd>
    380. 

  380. <dt><code>sf_code</code></dt>
    381. 

  381. <dd>
    382. 

  382. MARC subfield code.
    383. 

  383. </dd>
    384. 

  384. <dt><code>contents</code></dt>
    385. 

  385. <dd>
    386. 

  386. The raw textual content of the MARC field or subfield.
    387. 

  387. </dd>
    388. 

  388. </dl>
    389. 

  389. </section>
    390. 

  390. <section id="extracted-book-tables" class="level2">
    391. 

  391. <h2 class="anchored" data-anchor-id="extracted-book-tables">Extracted Book Tables</h2>
    392. 

  392. <p>We extract a number of tables from the LOC MDS book data. These tables only contain information about actual “books” in the collection, as opposed to other types of materials. We consider a book to be anything that has MARC record type ‘a’ or ‘t’ (language material), and is not also classified as a government record in MARC field 008.</p>
    393. 

  393. <div id="file:loc-mds/book-fields.parquet" class="parquet file-block" data-file="loc-mds/book-fields.parquet" data-struct="~bookdata::marc::flat_fields::FieldRecord">
    394. 

  394. <div class="file-header">
    395. 

  395. <code>loc-mds/book-fields.parquet</code> (struct <a href="../apidocs/bookdata/marc/flat_fields/struct.FieldRecord.html"><code>FieldRecord</code></a>)
    396. 

  396. </div>
    397. 

  397. <p>The <code>book-fields</code> table contains the raw data imported from the MARC files, as <a href="marc-format">MARC fields</a>. The LOC book data follows the <a href="https://www.loc.gov/marc/bibliographic/">MARC 21 Bibliographic Data format</a>; the various tags, field codes, and indicators are defined there. This table is not terribly useful on its own, but it is the source from which the other tables are derived.</p>
    398. 

  398. <details class="file-details"><summary>File details</summary>
    399. 

  399. <table class="file-schema table">
    400. 

  400. <caption>Schema for <code>loc-mds/book-fields.parquet</code>.</caption>
    401. 

  401. <colgroup>
    402. 

  402. <col style="width: 60%">
    403. 

  403. <col style="width: 40%">
    404. 

  404. </colgroup>
    405. 

  405. <thead>
    406. 

  406. <tr class="header">
    407. 

  407. <th style="text-align: left;"><div>
    408. 

  408. Field
    409. 

  409. </div></th>
    410. 

  410. <th style="text-align: right;"><div>
    411. 

  411. Type
    412. 

  412. </div></th>
    413. 

  413. </tr>
    414. 

  414. </thead>
    415. 

  415. <tbody>
    416. 

  416. <tr class="odd">
    417. 

  417. <td style="text-align: left;"><div>
    418. 

  418. rec_id
    419. 

  419. </div></td>
    420. 

  420. <td style="text-align: right;"><div>
    421. 

  421. UInt32
    422. 

  422. </div></td>
    423. 

  423. </tr>
    424. 

  424. <tr class="even">
    425. 

  425. <td style="text-align: left;"><div>
    426. 

  426. fld_no
    427. 

  427. </div></td>
    428. 

  428. <td style="text-align: right;"><div>
    429. 

  429. UInt32
    430. 

  430. </div></td>
    431. 

  431. </tr>
    432. 

  432. <tr class="odd">
    433. 

  433. <td style="text-align: left;"><div>
    434. 

  434. tag
    435. 

  435. </div></td>
    436. 

  436. <td style="text-align: right;"><div>
    437. 

  437. Int16
    438. 

  438. </div></td>
    439. 

  439. </tr>
    440. 

  440. <tr class="even">
    441. 

  441. <td style="text-align: left;"><div>
    442. 

  442. ind1
    443. 

  443. </div></td>
    444. 

  444. <td style="text-align: right;"><div>
    445. 

  445. UInt8
    446. 

  446. </div></td>
    447. 

  447. </tr>
    448. 

  448. <tr class="odd">
    449. 

  449. <td style="text-align: left;"><div>
    450. 

  450. ind2
    451. 

  451. </div></td>
    452. 

  452. <td style="text-align: right;"><div>
    453. 

  453. UInt8
    454. 

  454. </div></td>
    455. 

  455. </tr>
    456. 

  456. <tr class="even">
    457. 

  457. <td style="text-align: left;"><div>
    458. 

  458. sf_code
    459. 

  459. </div></td>
    460. 

  460. <td style="text-align: right;"><div>
    461. 

  461. UInt8
    462. 

  462. </div></td>
    463. 

  463. </tr>
    464. 

  464. <tr class="odd">
    465. 

  465. <td style="text-align: left;"><div>
    466. 

  466. contents
    467. 

  467. </div></td>
    468. 

  468. <td style="text-align: right;"><div>
    469. 

  469. Utf8
    470. 

  470. </div></td>
    471. 

  471. </tr>
    472. 

  472. </tbody>
    473. 

  473. </table>
    474. 

  474. </details>
    475. 

  475. </div>
    476. 

  476. <div id="file:loc-mds/book-ids.parquet" class="parquet file-block" data-file="loc-mds/book-ids.parquet" data-struct="~bookdata::marc::book_fields::BookIds">
    477. 

  477. <div class="file-header">
    478. 

  478. <code>loc-mds/book-ids.parquet</code> (struct <a href="../apidocs/bookdata/marc/book_fields/struct.BookIds.html"><code>BookIds</code></a>)
    479. 

  479. </div>
    480. 

  480. <p>This table includes code information for each book record.</p>
    481. 

  481. <ul>
    482. 

  482. <li>Record ID</li>
    483. 

  483. <li>MARC Control Number</li>
    484. 

  484. <li>Library of Congress Control Number (LCCN)</li>
    485. 

  485. <li>Record status</li>
    486. 

  486. <li>Record type</li>
    487. 

  487. <li>Bibliographic level</li>
    488. 

  488. </ul>
    489. 

  489. <p>More information about the last three is in the <a href="https://www.loc.gov/marc/bibliographic/bdleader.html">leader specification</a>.</p>
    490. 

  490. <details class="file-details"><summary>File details</summary>
    491. 

  491. <table class="file-schema table">
    492. 

  492. <caption>Schema for <code>loc-mds/book-ids.parquet</code>.</caption>
    493. 

  493. <colgroup>
    494. 

  494. <col style="width: 60%">
    495. 

  495. <col style="width: 40%">
    496. 

  496. </colgroup>
    497. 

  497. <thead>
    498. 

  498. <tr class="header">
    499. 

  499. <th style="text-align: left;"><div>
    500. 

  500. Field
    501. 

  501. </div></th>
    502. 

  502. <th style="text-align: right;"><div>
    503. 

  503. Type
    504. 

  504. </div></th>
    505. 

  505. </tr>
    506. 

  506. </thead>
    507. 

  507. <tbody>
    508. 

  508. <tr class="odd">
    509. 

  509. <td style="text-align: left;"><div>
    510. 

  510. rec_id
    511. 

  511. </div></td>
    512. 

  512. <td style="text-align: right;"><div>
    513. 

  513. UInt32
    514. 

  514. </div></td>
    515. 

  515. </tr>
    516. 

  516. <tr class="even">
    517. 

  517. <td style="text-align: left;"><div>
    518. 

  518. marc_cn
    519. 

  519. </div></td>
    520. 

  520. <td style="text-align: right;"><div>
    521. 

  521. Utf8
    522. 

  522. </div></td>
    523. 

  523. </tr>
    524. 

  524. <tr class="odd">
    525. 

  525. <td style="text-align: left;"><div>
    526. 

  526. lccn
    527. 

  527. </div></td>
    528. 

  528. <td style="text-align: right;"><div>
    529. 

  529. Utf8
    530. 

  530. </div></td>
    531. 

  531. </tr>
    532. 

  532. <tr class="even">
    533. 

  533. <td style="text-align: left;"><div>
    534. 

  534. status
    535. 

  535. </div></td>
    536. 

  536. <td style="text-align: right;"><div>
    537. 

  537. UInt8
    538. 

  538. </div></td>
    539. 

  539. </tr>
    540. 

  540. <tr class="odd">
    541. 

  541. <td style="text-align: left;"><div>
    542. 

  542. rec_type
    543. 

  543. </div></td>
    544. 

  544. <td style="text-align: right;"><div>
    545. 

  545. UInt8
    546. 

  546. </div></td>
    547. 

  547. </tr>
    548. 

  548. <tr class="even">
    549. 

  549. <td style="text-align: left;"><div>
    550. 

  550. bib_level
    551. 

  551. </div></td>
    552. 

  552. <td style="text-align: right;"><div>
    553. 

  553. UInt8
    554. 

  554. </div></td>
    555. 

  555. </tr>
    556. 

  556. </tbody>
    557. 

  557. </table>
    558. 

  558. </details>
    559. 

  559. </div>
    560. 

  560. <div id="file:loc-mds/book-isbns.parquet" class="parquet file-block" data-file="loc-mds/book-isbns.parquet" data-struct="~bookdata::marc::book_fields::ISBNrec">
    561. 

  561. <div class="file-header">
    562. 

  562. <code>loc-mds/book-isbns.parquet</code> (struct <a href="../apidocs/bookdata/marc/book_fields/struct.ISBNrec.html"><code>ISBNrec</code></a>)
    563. 

  563. </div>
    564. 

  564. <p>Textual ISBNs as extracted from LOC records. The actual ISBN strings (tag 020 subfield ‘a’) are quite messy; the parser in <a href="../apidocs/bookdata/cleaning/isbns/"><code>bookdata::cleaning::isbns</code></a> parses out ISBNs, along with additional tags or descriptors, from the ISBN strings using a number of best-effort heuristics. This table contains the results of that process.</p>
    565. 

  565. <details class="file-details"><summary>File details</summary>
    566. 

  566. <table class="file-schema table">
    567. 

  567. <caption>Schema for <code>loc-mds/book-isbns.parquet</code>.</caption>
    568. 

  568. <colgroup>
    569. 

  569. <col style="width: 60%">
    570. 

  570. <col style="width: 40%">
    571. 

  571. </colgroup>
    572. 

  572. <thead>
    573. 

  573. <tr class="header">
    574. 

  574. <th style="text-align: left;"><div>
    575. 

  575. Field
    576. 

  576. </div></th>
    577. 

  577. <th style="text-align: right;"><div>
    578. 

  578. Type
    579. 

  579. </div></th>
    580. 

  580. </tr>
    581. 

  581. </thead>
    582. 

  582. <tbody>
    583. 

  583. <tr class="odd">
    584. 

  584. <td style="text-align: left;"><div>
    585. 

  585. rec_id
    586. 

  586. </div></td>
    587. 

  587. <td style="text-align: right;"><div>
    588. 

  588. UInt32
    589. 

  589. </div></td>
    590. 

  590. </tr>
    591. 

  591. <tr class="even">
    592. 

  592. <td style="text-align: left;"><div>
    593. 

  593. isbn
    594. 

  594. </div></td>
    595. 

  595. <td style="text-align: right;"><div>
    596. 

  596. Utf8
    597. 

  597. </div></td>
    598. 

  598. </tr>
    599. 

  599. <tr class="odd">
    600. 

  600. <td style="text-align: left;"><div>
    601. 

  601. tag
    602. 

  602. </div></td>
    603. 

  603. <td style="text-align: right;"><div>
    604. 

  604. Utf8
    605. 

  605. </div></td>
    606. 

  606. </tr>
    607. 

  607. </tbody>
    608. 

  608. </table>
    609. 

  609. </details>
    610. 

  610. </div>
    611. 

  611. <div id="file:loc-mds/book-isbn-ids.parquet" class="parquet file-block" data-file="loc-mds/book-isbn-ids.parquet">
    612. 

  612. <div class="file-header">
    613. 

  613. <code>loc-mds/book-isbn-ids.parquet</code>
    614. 

  614. </div>
    615. 

  615. <p>Map book records (LOC book <code>rec_id</code> values) to <a href="isbn-id">ISBN IDs</a>. It is produced by converting the ISBNs in <a href="../data/loc.html#file:loc-mds/book-isbns.parquet"><code>loc-mds/book-isbns.parquet</code></a> into ISBN IDs.</p>
    616. 

  616. <details class="file-details"><summary>File details</summary>
    617. 

  617. <table class="file-schema table">
    618. 

  618. <caption>Schema for <code>loc-mds/book-isbn-ids.parquet</code>.</caption>
    619. 

  619. <colgroup>
    620. 

  620. <col style="width: 60%">
    621. 

  621. <col style="width: 40%">
    622. 

  622. </colgroup>
    623. 

  623. <thead>
    624. 

  624. <tr class="header">
    625. 

  625. <th style="text-align: left;"><div>
    626. 

  626. Field
    627. 

  627. </div></th>
    628. 

  628. <th style="text-align: right;"><div>
    629. 

  629. Type
    630. 

  630. </div></th>
    631. 

  631. </tr>
    632. 

  632. </thead>
    633. 

  633. <tbody>
    634. 

  634. <tr class="odd">
    635. 

  635. <td style="text-align: left;"><div>
    636. 

  636. rec_id
    637. 

  637. </div></td>
    638. 

  638. <td style="text-align: right;"><div>
    639. 

  639. UInt32
    640. 

  640. </div></td>
    641. 

  641. </tr>
    642. 

  642. <tr class="even">
    643. 

  643. <td style="text-align: left;"><div>
    644. 

  644. isbn_id
    645. 

  645. </div></td>
    646. 

  646. <td style="text-align: right;"><div>
    647. 

  647. Int32
    648. 

  648. </div></td>
    649. 

  649. </tr>
    650. 

  650. </tbody>
    651. 

  651. </table>
    652. 

  652. </details>
    653. 

  653. </div>
    654. 

  654. <div id="file:loc-mds/book-authors.parquet" class="parquet file-block" data-file="loc-mds/book-authors.parquet">
    655. 

  655. <div class="file-header">
    656. 

  656. <code>loc-mds/book-authors.parquet</code>
    657. 

  657. </div>
    658. 

  658. <p>Author names for book records. This only extracts the primary author name (MARC field 100 subfield ‘a’).</p>
    659. 

  659. <details class="file-details"><summary>File details</summary>
    660. 

  660. <table class="file-schema table">
    661. 

  661. <caption>Schema for <code>loc-mds/book-authors.parquet</code>.</caption>
    662. 

  662. <colgroup>
    663. 

  663. <col style="width: 60%">
    664. 

  664. <col style="width: 40%">
    665. 

  665. </colgroup>
    666. 

  666. <thead>
    667. 

  667. <tr class="header">
    668. 

  668. <th style="text-align: left;"><div>
    669. 

  669. Field
    670. 

  670. </div></th>
    671. 

  671. <th style="text-align: right;"><div>
    672. 

  672. Type
    673. 

  673. </div></th>
    674. 

  674. </tr>
    675. 

  675. </thead>
    676. 

  676. <tbody>
    677. 

  677. <tr class="odd">
    678. 

  678. <td style="text-align: left;"><div>
    679. 

  679. rec_id
    680. 

  680. </div></td>
    681. 

  681. <td style="text-align: right;"><div>
    682. 

  682. UInt32
    683. 

  683. </div></td>
    684. 

  684. </tr>
    685. 

  685. <tr class="even">
    686. 

  686. <td style="text-align: left;"><div>
    687. 

  687. author_name
    688. 

  688. </div></td>
    689. 

  689. <td style="text-align: right;"><div>
    690. 

  690. Utf8
    691. 

  691. </div></td>
    692. 

  692. </tr>
    693. 

  693. </tbody>
    694. 

  694. </table>
    695. 

  695. </details>
    696. 

  696. </div>
    697. 

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  1037.           citeDiv.classList.add('hanging-indent');
    1038. 

  1038.           citeDiv.classList.add('csl-entry');
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    1050. 

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    1051. 

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    1052. 

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    1053. 

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  1056. </body></html>
    1057.
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Integrate Google Cloud Storage
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Integrate AWS S3
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Integrate S3 compatible storage
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Use any S3 compatible storage!

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Integrate Azure Cloud Storage
Use Azure Storage
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Set key
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Specify your Azure Storage bucket

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Congratulations!

Bookdata-tools is now integrated with Azure Cloud Storage!

Delete Storage Key

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