Bøker i World of the Unknown-serien

First published in 1977, this cult classic has been reissued for a new generation of ghost-hunters. This book is for anyone who has shivered at shadowy figures in the dark, heard strange sounds in the night or felt the presence of a mysterious `something' from the unknown.

From flying saucers and supersonic spaceships, to alien encounters and famous fakes, this classic title traces UFOs throughout history. First published in 1977, this is the second book from Usborne's World of the Unknown series to be back by popular demand. With a foreword by impressionist Jon Culshaw.