Uncommon yellow spiral-bound manual entitled "ALSEP Press Backgrounder, Apollo Lunar Surface Experiments Package," presented by the Aerospace Systems Division of the Bendix Corporation and dated November 1969, 34 pages, 8.5 x 11, published to familiarize the reader with the principal scientific objectives of ALSEP, the equipment, its operation, and its deployment on the lunar surface by the Apollo astronauts. Section titles are as follows: Introduction, Lunar Exploration, ALSEP System Operation, ALSEP Supporting Subsystems, Dust Detector, Data Subsystem, Electrical Power Subsystem, Structural/Thermal Subsystem, and ALSEP Deployment. Housed in a modern three-ring binder. In fine condition, with staple holes to upper left corner.