The Flying Saucers Are Real: Documented UFOs 1947-1950

In this cornerstone of ufology, Keyhoe investigates numerous encounters between USAF fighters, personnel, and other aircraft, and UFOs between 1947 and 1950.

Keyhoe contends that the Air Force was actively investigating these cases of close encounters, with a policy of concealing their existence from the public until 1949. He stated that this policy was then replaced by one of cautious, progressive revelation.

This book was a huge success at its original publication in 1950 and popularized many ideas in ufology that are still widely believed today.