This guide exists as a self-help reference resource. We are unable to provide any cataloging assistance or answer cataloging questions.
What's in this Guide
What do you do if you have a Dewey Decimal Classification (DDC) number, but you are looking for books in the Library of Congress Classification (LCC) scheme? See the following pages in this guide for help.
DDC to LCC- Mapping Dewey Decimal numbers to corresponding Library of Congress numbers
LCC to DDC- Mapping Library of Congress Classification numbers to corresponding Dewey numbers.
Search by Title, Author, Subject Heading, or Standard Number
Search WorldCat for the book and click-through to library catalogs to see what call number they list. This method may prove more successful for some books than the LC catalog search.
Search by title of the work to find its entry in the LC Catalog in which you may find listed LC call numbers and DD class numbers. Not all books in the LC Catalog will have this information listed, and you may be unable to find recently published works.
NOTE: Classify was discontinued on January 31, 2024. OCLC Cataloging and Metadata subscribers can use WorldShare Record Manager or the WorldCat Metadata API, available as part of the subscription, to perform similar searches to find classification numbers.
Dewey Decimal Classification Handout and Library of Congress Classification Handout
Dewey Decimal list - The basic categories of the Dewey Decimal Classification scheme.
This list contains the "tens" and "hundreds" in the Dewey Decimal Classification scheme. Use this handout as a guide to browse the Reference collection on the main floor of the Berntsen Library, in order to locate a relevant reference article.