This U.S. Air Force study reference, dated 1 Oct 2017, is for Airmen studying for promotion to Master Sergeant. It is based on Air Force Handbook 1, The Airman Handbook, 2017-2019 edition. It is 469 pages, including front and back cover, and includes chapters 1-16, 18-19, 21-23 and attachments (MKTS). All interior pages are black and white (no color pictures or charts). Produced by FreePDG.com.