Annie Jacobsen, "Area 51: An Uncensored History..." (2011)

This book averaged a solid premise. Jacobsen essentially posits that much of the mystery attached to Area 51 is its use as a testing ground for atomic and nuclear explosives, and as a centre for testing new spy-oriented aircraft.

Near the beginning she also suggests that the Russians may have been making flyovers (or at least wanted it to appear they were making flyovers of US territory) using advanced aircraft developed from prototypes the Nazis had in development.

While much of the book is well-documented, cogently presented, and plausible, the theories surrounding the Russian craft seem to dwell in the twilight that most of the theorizing about Area 51 has. As any claim to dispel the myth of Area 51 will have to do, Jacobsen's claim isn't grounded in enough verifiable, multiple unrelated sources to convince me.