Richard Bach's early books are great: Stranger to the Ground, Biplane, Nothing by Chance, A Gift of Wings
Antione de Saint-Exupery's books are also outstanding: Night Flight, Flight to Arras, Wind Sand & Stars
Ernest K. Gann's "Fate is the Hunter" pretty much sets the standard for aviation books.
Lots of good bush pilot biographies out there. Wager with the Wind is great, Frank Barr's biography is also good (the guy whittled his own prop and flew home after a wind storm flipped his plane over), I also recommend Noel Wien's book.
I've read plenty of war aviation books but the ones that stand out at the moment are Wrecking Havoc: A year in the A-20, Sagittarius Rising, and Adak. There are a few others I can't recall the titles of.
Last two. Mariana Gosnell's Zero Three Bravo is about her flying around the country in her Luscombe, great read. And True North by George Erickson is about a trip around Canada and Alaska in a PA-11, pretty much my dream trip.