Nick Redfern's "Area 51: The Revealing Truth of UFOs, Secret Aircraft, Cover-Ups & Conspiracies" (2019) is a 432-page investigation blending historical documentation of Cold War aircraft testing with testimony on UFO folklore, including Bob Lazar's allegations. The book covers topics from U-2 spy plane development and Project Mogul to rumors of underground facilities and alien technology. For more details, visit Amazon .