Mason's Manual of Legislative Procedure
Mason's Manual of Parliamentary Procedure
Commonly referred to as Mason's Manual.
This 700+ page book serves as the official parliamentary manual of most state legislative bodies in the United States. It covers motions, procedures, vote requirements, etc. applicable to legislatures. It includes the rules of order, principles, precedents, and legal basis behind parliamentary law.
The author, Paul Mason, was a scholar who worked for the California State Senate. He is best known for writing Constitutional History of California in 1951 and Manual of Legislative Procedure in 1935.
The National Conference of State Legislatures (NCSL) was assigned copyright ownership by Paul Mason prior to his death. The NCSL assigned the American Society of Legislative Clerks and Secretaries (ASLCS) the task of editing and maintaining the manual for future printings.