The Processing Center is a service which receives book orders from participating member libraries, consolidates them; and then orders, classifies, catalogs, and processes the books; and prepares catalog card sets. The books are sent to the member libraries ready for circulation, except for property stamping, copy or accession number and other special handling deemed necessary by the member library. The Processing Center is the initial phase of the Nevada Center for Cooperative Library Services (NCCLS) organized in accordance with provisions of the Nevada Revised Statutes entitled "Interlocal Cooperation Act". Twenty-two agencies including public libraries, school districts, university libraries, and state level libraries signed the "Agreement" under which the NCCLS was formed in 1967. The purpose of the cooperative is to "provide coordinated library services by and between each member library through the joint use of funds, personnel, equipment, and facilities regarding but not limited to purchasing, cataloging, and processing of library materials." Following the introduction, this handbook discusses the policies and procedures to be used by the member libraries. (Author/NH)