Handbooks provide a thorough overview of a topic sub-discipline in economics. They typically include a collection of essays on the topic and are a useful entry point into the research and scholarship of the topic or sub-discipline.
The best way to find a handbook is to use UW Libraries Search. Try searching for your topic and the term handbook. Use the filters on the left to narrow to ebook or print books. Oxford University Press, Elsevier, and Elgar are publishers that produce many economics handbooks.