UFOs for Know-It-Alls is a reference guide to help readers understand the history and truths related to UFOS, aka Unidentified Flying Objects, aka Flying Saucers. Many people around the world have experienced phenomena in the skies including large round discs which they believe could be of an extraterrestrial origins and could contain aliens from other worlds at their helm. This publication looks into the first modern reports of UFOs, important events info UFO history, physical evidence, and related conspiracy theories among many other key issues related to these possible alien spaceships. UFOs for Know-It-Alls is highly recommended for those who are interested in learning more about the UFO phenomena.