'Airymouse' and 'Cloud Cuckoo Land' by Harald Penrose.
Richard Bach: 'A Gift of Wngs', 'Stranger to the Ground', and 'Biplane'.
Ernest Gann 'Fate is the Hunter' (recollections of early US airline pilot - absolutely superb).
'F-4 Phantom', by Robert Prest. Superbly written account of an RAF F-4 pilot. Why didn't he write anything else?
SSD