"War In The Air" by Stephen Coontz is a good starter. Its a compilation of the best parts of other air combat books, mostly memoirs of the guys that did the flying. Passages include pilot's memories from The Great War, World War II, Korea, Vietnam, and Desert Storm. Start with that one and pick the best passages, then buy the books that the passages came from to read the rest of their stories.
One worth reading is "To Fly and Fight" by C.E. "Bud" Anderson. You can get an autographed copy from his website. For a view from the other side, check out "I Flew For The Fuhrer" by Heinz Knoche.
I also enjoyed "Baa Baa Black Sheep" by Maj. Greg Boyington and "Samurai!" by Saburo Sakai.