This document provides an overview of legal encyclopedias as secondary sources for researching the law. It defines primary and secondary sources, explains why legal encyclopedias are useful for gaining a broad overview or more in-depth analysis of an unfamiliar topic, and how they cite to primary authority. It describes the basic format and contents of legal encyclopedias including main volumes, indexes, entries with footnotes, and pocket parts. The document demonstrates how to search for information in print and electronic legal encyclopedias using general indexes, tables of contents, and keyword searches. It stresses analyzing and fact-checking entries along with finding additional sources.