This is a pocket reference guide to all kinds of Unidentified Flying Objects, close encounters of the third kind and the possibilities of life on other planets, and describes strange phenomena which might or might not be evidence for extra-terrestrial accounts. The book also lists some of the things which are commonly mistaken for UFO's. In addition, there are photographs which the reader can examine and judge, to see if they are fakes or real evidence of UFO's. The book also lists UFO 'hotspots' - areas where there are more than usual sightings of strange objects.