Legal research is the search for authority that can be applied to a given set of facts and issues. The universe of potentially useful authority is vast, and good researchers have well-developed analysis skills in addition to an understanding of the techniques and efficiencies of doing legal research. The Thurgood Marshall Law Library Guide to Legal Research has been developed for use in a variety of introductory and advanced research courses. It presents a succinct introduction to the tools and techniques, both print and electronic, with which the legal researcher must become familiar. Additionally, the strategy sections include information about how to select potentially relevant authorities, as well as discussions about which sources to consult and how they can best be used.