Finding Books in Allecat
For books about an author: start with the LAST NAME, First Name format for your author in the LC SUBJECT search box.
Subject Heading: Nordan, Lewis -- Criticism and interpretation
For books about a topic, start with keyword searches then identify the relevant subject headings from the results list:
Subject Heading: Civil rights movements -- United States
You may also do a keyword search on your author's name to increase you results.