Marine Corps Reference Publication (MCRP) 2-10B.1, Intelligence Preparation of the Battlespace, serves as a foundational reference guide for understanding concepts, operations, and procedures for the IPB process in support of the Marine air-ground task force. This publication complements and expands on Marine Corps Doctrinal Publication (MCDP) 2, Intelligence, and Marine Corps Warfighting Publication (MCWP) 2-10, Intelligence Operations, which provide doctrine and higher-order tactics, techniques, and procedures for intelligence operations. The primary target audience of this publication is intelligence personnel responsible for planning and executing the IPB process. Personnel who provide support to the IPB process or who use the results from the IPB process should also read this publication.