Genealogy is the study of the descent of a family from an ancestor or ancestors. This selected list of books in the collections of the Library of Congress was compiled primarily for researchers of Afro-American lineages. The bibliography includes guidebooks, bibliographies, genealogies, collective biographies, U.S. local histories, directories, and other works pertaining specifically to Afro-Americans. The sources are listed geographically with citations to histories of Afro-Americans in U.S. cities, towns, counties, and states. Printed family histories and genealogies are major sources for this research, and 56 references by specific family names are included. (NL)