From flying saucers and supersonic spaceships, to alien encounters and famous fakes, this classic title traces UFOs throughout history, and is the perfect companion for any space enthusiast.

First published in 1977, this is the second book from Usborne's beloved World of the Unknown series to be brought back by popular demand. With a brand new foreword by impressionist, actor and comedian Jon Culshaw, otherwise the book remains unchanged from the original.