The UFO Book: A Chronological Journey from Crop Circles to Roswell

For thousands of years people have seen strange lights and hovering shapes in the sky. From an ancient awareness that there might be creatures beyond this world to very recent disclosures of alien activity at a governmental level, speculation about unidentified flying objects--and the alien entities that might have traveled within them--has animated humanity's relationship to the unknown. John Michael Greer, long-time researcher of the unexplained, chronicles 100 of the most fascinating bru...