- Murder in the Library series
- Murder in the Stacks (2007)
- Murder Under the Stacks (2008)
- Murder in the Reading Room (2010)
- Murder in the Manuscript Room (2011)
- Murder in the Special Collections Room (2012)
- The Cat Who series
- The Cat Who Knew Shakespeare (2014)
- The Cat Who Knew Dickens (2015)
- The Cat Who Knew Austen (2016)
- The Cat Who Knew Hemingway (2017)
- The Cat Who Knew Woolf (2018)
Nonfiction:
- A Guide to the Dewey Decimal Classification System (1996)
- The World of Libraries: A Guide for the Perplexed (1998)
- Cataloging Made Simple: A Guide for Non-Catalogers (2010)