"North Star Over My Shoulder" by Capt. Robert Buck of TWA. Started out on DC-2s and 3s, ended up as chief pilot on the 747. What a career span!
"Da Nang Diary" by Tom Yarborough. Flew OV-10 Broncos in Vietnam. Lots of hair-raising moments in that book. Very good read.
"Stick and Rudder" by Wolfgang Langewiesche, for obvious reasons.
"Bury Us Upside Down" about the "Misty" F-100 fast FACs in Vietnam.