Consisting of two houses-the Senate and the House of Representatives-and 535 members-100 Senators and 435 Representatives, the U.S. Congress forms the legislative branch of the United States Government. Primarily charged with composing the laws of the United States, the Congress also is responsible for creating all bills for revenue; laying and collecting taxes; borrowing money; printing money; regulating commerce; declaring war; administering postal services, military services, and lower courts; and promoting the progress of science and the arts through grants.

The Historical Dictionary of the U.S. Congress is intended to provide greater civic understanding for young Americans and to provide a handy reference to more serious students of the legislative process in the United States. This is done through a chronology, an introductory essay, appendixes listing the dates Congress has been in session and all the people who have held leadership positions in Congress, a comprehensive bibliography, and over 500 cross-referenced dictionary entries on congressional leaders, elections, and legislative practices. This book is an excellent access point for high school students, college students, and anyone interested in a better understanding of the legislative process in the United States.