BY THE BOOK U.S. Air Force Senior Airman Jessica Tabor, left, reads her airman's manual with Master Sgt. Randall Hotchkin, right, during the Phase II Operational Readiness Exercise on Ellsworth Air Force Base, S.D., May 12, 2010. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 776473-G-PIX36-718.jpg Photo Gallery