The United States Government Manual, 2006-2007 (Paperback)

The directory provides comprehensive information on the agencies of the legislative, judicial, and executive branches, as well as quasi-official agencies, international organizations in which the United States participates, boards, commissions, and committees.
Each agency's description consists of the following:
-- List of principal officials
--Summary statement of the agency's purpose and role in the Federal Government
--Brief history of the agency, including its legislative and executive authority
--Description of consumer activities, contracts and grants, employment, and publications