This list is a quick guide to the best of the wide range of UFO books. The literature varies from naive believers to fanatic debunkers. This list, however, features the people in the middle: the UFO researchers. They believe genuine UFOs are a mystery needing a solution. Unlike UFO researchers, the naive believers and debunkers think alike since they both believe the mystery is solved. Naive believers "know" genuine UFOs are flying saucers piloted by space beings. Debunkers "know" it is all just psychology or perhaps some as yet undiscovered physical phenomenon. However, when mainstream scholars and scientists finally accept the challenge of the UFO mystery (which they haven't for 40 years now), the naive believers will probably be closer to the truth than the debunkers.