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Search/Browse Help - Record Display and Availability
Full Record Display
Full Record labeled displays are the default display for individual records in the LC Catalog. Full Record displays include:
LC Find It
To help you locate ebooks and ejournals described in Catalog records, the Library of Congress uses OpenURLs – URLs that dynamically construct web searches for full text available either onsite at the Library or through fee-based and freely-accessible web sites. When you are onsite at the Library, click the LC Find It button to locate full text content accessible from Library reading rooms. To assist offsite patrons, Catalog records also embed "invisible" snippets of HTML code (called COInS) that enable browser plug-ins and reference citation software to build OpenURLs that link to eresources available from local institutions.
Request this Item
Registered readers may use the LC Catalog to request materials from the Library's general collections and from some special collections through Automated Call Slip (ACS). ACS offers delivery of materials only to the Library's Main, Science and Business, European, Hispanic, Law, and Performing Arts reading rooms. See the Guide for Requesting Materials in the Library's Catalog for additional information.
Availability: Library Holdings and Location Information
LC Call Number or Shelf Location
The call number or shelf location information needed to retrieve collection items. This information is usually followed by metadata identifying a specific copy. Clicking on a call number link launches a Call Numbers Browse search for records beginning with the same call number designation (often those in the same LC classification number).
Note that records in the LC Catalog often indicate that the Library holds one copy of a work, even though additional copies may actually be available in the Library's collections. The Library has initiated long-term projects to validate this displayed copy information.
Request in
The Library of Congress reading room or book service areas (including building name and room number) where the item must be requested. Items stored offsite require additional time to be delivered to the Library campus.
Availability information for an item (whether it is charged, not charged, etc.)
Special Information about Periodical Holdings
Additional information that identifies periodical issues available in the Library's collections and the reading room or book service area where these issues should be requested. This holdings information - displayed on many (but not all) records for Library periodicals - may include the shelving title, bound volume and issue holding data, the latest and older unbound receipts, and notes about supplements and indexes.
Library of Congress Holdings Information Not Available
Legend displayed on LC Catalog records for:
MARC Tags Display
The MARC Tags record view displays bibliographic information in the MARC 21 communications format, a standard that enables exchange of bibliographic, holdings, authority, and other data among systems. Fixed- and variable-length MARC fields and content designation are presented as an HTML list, with fields ordered as the appear in the MARC data. The MARC Tags view displays the record leader; however, the MARC record directory can only be viewed when the record is downloaded in MARC ISO 2709 format.
Punctuation, Diacritics, Special Characters, Non-Roman Characters
Most marks of punctuation in your search query are converted to spaces. Some punctuation and diacritic marks are removed: apostrophes, alifs, ayns, middle dots, primes, and double primes. A few special characters, however, are retained in searches: ampersands (&), plus signs (+), at signs (@), number signs (#), and musical flat (♭) and natural (♮) signs (musical sharps are converted to spaces). Special characters are generally converted to their nearest alphabetic equivalent (for example: an æ diagraph to ae or a þ thorn to th).
Records in the LC Catalog use Unicode (UTF-8 encoding) for searching and displaying data. In addition to Roman scripts, Catalog records may also contain the following languages/scripts: Chinese, Japanese, Korean; Cyrillic-based scripts; Greek; Hebrew, Yiddish; and Perso-Arabic script (e.g., Arabic, Persian, Pushto, Sindhi, Urdu). For more information, see Searching/Displaying Non-Roman Characters.
In general, your preferred web browser settings will not need to be changed to correctly view records that contain diacritics, special characters, or non-Roman characters. If you have problems, however, you may need to reconfigure your browser . Best results occur if you have Unicode fonts and use Unicode character encoding with automatic character encoding activated.
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