Ufology: A Very Short Introduction is the result of decades of reading and thinking about flying saucers, extraterrestrials, prehistory, ancient astronauts, megalithic architecture, alien encounters, contactees, abductees, and the government cover up; and, it's the result of years of discussing these topics with friends and students. Ufology should be an academic discipline. Of course, it is not. Instead, ufology is today's most controversial pseudoscience. This is because ufology is actually a young evolving science that has been artificially kept in the realm of pseudoscience. While ufological evidence seems abundant, its content is denied by our government and so ufology is excluded from legitimate academic inquiry. Still, since the historical and testimonial evidence is so ubiquitous and accessible, many outstanding researchers have been able to discover that which appears to be at least a close approximation to the truth about our world and our alien involvements. They have published their findings and their findings are compelling. So, informed by ufology, we are now able to sketch an improved outline of our past and our present, and we can project a little into what may be our future. Ufology: A Very Short Introduction is an introduction to this emerging discipline.