Today, many Americans spend most of their time at UFO conventions, UFO pilgrimages, and New Age gatherings. Cities and local people have learned to capitalize on their UFO phenomena. Rumors of the 1947 crash of a flying saucer draw tourists to Roswell, New Mexico, which holds an annual UFO festival and sports its own UFO museum. However, there is no study of the role played by rumor in the development of the Flying Saucer phenomenon. In July 1947, the renowned psychologist Dr. Gordon W. Allport from Harvard University was once interviewed by a reporter from The New York Times about his book: The Psychology of Rumor. During the interview, He pointed out that: "The book concerns itself "with how current rumors are born and grow and how flying saucer epidemics spread throughout the nation." The author finished his book at the end of WW II and the dawn of the UFO age. Also, he feels the social atmosphere that permeated those years with the Roswell incident (1947) and Kenneth Arnold's (1947) first widely reported modern unidentified flying object sighting. However, his book was not intended to deal directly, and it is not about Flying Saucer rumors; the author realized that the exact mechanism that creates rumors could apply to Flying Saucers. We have republished, as a facsimile edition, Allport's original work of 1947 under a new title: "The Psychology of Rumor Or How The Flying Saucer Phenomenon Spread Throughout The Nation" following the author's comments to The New York Time reporter. Please, copy and paste the link for our books at: https: //saucerianbooks.blogspot.com/