The world's most comprehensive bibliography with bibliographic records representing information spanning 4,000 years of knowledge. It is the OCLC Online Union Catalog of information contributed by OCLC (Online Computer Library Center) member libraries worldwide.
Discovery searchuses Library of Congress subject headings to organize and describe books and articles. To search using a subject heading, follow these steps:
Make sure to use the Advanced Search option
Click on the first line where it says "Any Field" and change it to "Subject"
Then click on the box to the right that says "contains" and change it to "is (exact)"
Finally, put in the subject heading you want to search in the box and click "SEARCH"
Example Subject Headers
General Book History
Book industries and trade -- History
Books -- History
Books and reading -- History
Printing -- History
Periodicals -- History
Publishers and publishing -- History
American Book History (1700s - 1800s)
Book industries and trade -- United States -- History -- 18th century
Book industries and trade -- United States -- History -- 19th century
Books and reading -- United States -- History -- 18th century
Books and reading -- United States -- History -- 19th century
Books -- History -- 18th century
Books -- History -- 19th century
Printing -- United States -- History -- 18th century
Printing -- United States -- History -- 19th century
Publishers and publishing -- United States -- History -- 18th century
Publishers and publishing -- United States -- History -- 19th century
American Book History (1900s - Present)
Book industries and trade -- United States -- History -- 20th century
Paperbacks -- Publishing -- United States -- History -- 20th century
Printing -- History -- 20th century
Publishers and publishing -- United States -- History -- 20th century
Publishers and publishing -- History -- 20th century