About the Book: Explore the mysteries of the skies with The World of the Unknown: UFOs, a classic Usborne title reissued by popular demand. From flying saucers and alien encounters to famous fakes and real-life sightings, this fascinating book investigates decades of UFO stories and unexplained phenomena. Complete with a new foreword by Jon Culshaw, it’s the ultimate guide for space enthusiasts and anyone intrigued by extraterrestrial mysteries.