Principles of Legal Research provides comprehensive yet concise coverage of research methods in both online and printed resources. It has been thoroughly updated to explain the latest features of the major legal research platforms as well as dozens of other free and subscription websites. In this expanded and reorganized edition, an introductory survey of research strategies is followed by discussion of major secondary sources, treatment of the sources of U.S. law created by each branch of government, chapters on specialized resources for litigation and transactional practice, and an overview of international and foreign law. Other new features include a deeper look at search algorithms and executive branch lawmaking. Sample illustrations are included throughout, and an appendix lists hundreds of major treatises and topical services by subject.