Genealogy resources for African-Americans:
Historical records including Federal Census, Marriage and Cohabitation Records, Military Draft and Service Records, Registers of Slave and Free(d) Persons of Color, Freedman's Bank, and more;
A state-by-state resource guide covering principles, methodology, and specific resources for each state;
and a variety of other books with overviews of African American-specific collections and repositories and other relevant reference information.