This encyclopedia is geared to the non-specialist in the field of American History. It covers movements, events, organizations, book titles, and more than 400 brief biographies. Guide to American Law. This is an excellent source on the legal and constitutional aspects of American History. Of the twelve volume set, the eleventh volume contains a collection of legal documents and the twelfth is an index to the entire set.
Yearly supplements are available.
Oxford Companion to American History. This single volume is a very good reference work on American History. It is concise and precise. Webster's Guide to American History. The guide is divided into three major divisions plus an index.