A Field Guide to Aliens is the first truly comprehensive guide to Earth's extraterrestrial visitors and includes profiles of more than twenty-five types of aliens. With this essential field guide, you'll learn about each alien's origin, diet, and distinguishing features; check out their cool tech gadgets (from lasersaws to slime grenades); get the most up-to-date information on alien sightings; see the undeniable evidence of aliens on our...