This important work has been completely revised and expanded with the addition of online databases, web sites and CD-ROM titles. It identifies and describes hundreds of reference books that pertain to American history. Entries offer full descriptive, and in some cases, evaluative annotations. Arranged topically, the guide begins with an introduction and a chapter on sources of general importance. Subsequent chapters cover U.S. history in terms of politics and government; diplomatic history and foreign affairs; military history; social, cultural, and intellectual history; regional history; and economic history. Introductory scope notes provide valuable expository information and suggested search strategies in such areas as automation, government documents, and genealogy. Entries include works published through 2002.