"Skunk Works" by Ben R Rich and Leo Janos is a great read if this sort of thing is of interest. "SR-71 Revealed" by Richard H Graham is another good one. These books tell a lot, but its plain to see theres a lot they don't. "Kelly. More than My Share of it All." by the man himself, is interesting, but not very well written or edited. I get the feeling he did it all himself and wouldn't allow input from those that know how to write such things. "Boyd. The fighter Pilot Who Changed the Art of War." by Robert Coram is another great read.