BALAD AIR BASE, Iraq -- Staff Sgt. Nate Harper, 332nd Expeditionary Services Squadron head librarian, places back a guide that informs readers about choices in distance learning, on a bookshelf here. The library also has College Level Examination Program and Defense Activity for Non-Traditional Education Support study guides to check out 24 hours-a-day. Sergeant Harper is deployed from Langley Air Force Base, Va. (U.S. Air Force photo/Staff Sgt. Travis Edwards)