One good way to begin is to review law library guides to treatises by subject.
Westlaw and Lexis are two major databases law students frequently use to find U.S. law, but that's just the beginning. The library has many additional online and print resources that can help with your research.
Law librarians can help with:
Come see us in the Law Library in the Reference Office.
Additional books on legal research can be found in the Law Library Reading Room KF 240s section.