Kenneth Arnold was an American pilot who reported seeing a formation of unidentified flying objects (UFOs) in 1947, which sparked widespread interest in UFOs and helped to popularize the term "flying saucer." Raymond Palmer was a science fiction writer and editor who was instrumental in promoting UFO-related literature.The book recounts Arnold's sighting of the UFOs, as well as other reported sightings from around the world. It also discusses various theories about the nature and origin of the objects, including extraterrestrial visitation and government cover-ups."The Coming of the Saucers" was one of the first books to popularize the idea of UFOs as a serious phenomenon, and it helped to shape public perceptions and interest in the subject. The book was controversial at the time of its publication, with some critics dismissing it as sensationalism and others praising it as a groundbreaking work of UFO research.Today, "The Coming of the Saucers" remains a classic in the field of UFO literature and continues to be studied and debated by researchers and enthusiasts of the paranormal and UFOs.