This U.S. Air Force study reference, dated 1 Oct 2017, is for Airmen studying for promotion to Tech Sergeant. It is based on Air Force Handbook 1, The Airman Handbook, 2017-2019 edition. It is 389 pages, including front and back cover, and includes chapters 1-19 and attachments (MKTS). All interior pages are black and white (no color pictures or charts). Produced by FreePDG.com.