Soar: The Breakthrough Treatment for Fear of Flying by Tom Bunn worked very well for me. It's written by a pilot who is also a licensed therapist. The book uses cognitive behavioral therapy to help you moderate your body's stress response to flying, but with the added benefit of the author explaining, from a pilot's point of view, the mechanics of flying.
The book is only $10 so if it doesn't work no big loss.
The book is only $10 so if it doesn't work no big loss.