"This is a serious compilation of many cases of pilot sightings detailing unusual aerial phenomena in the Mexican skies. The study covers over fifty years of incidents, many with radar confirmation and quotes from the pilots themselves. The volume is written in a clear, sober style that gives priority to the witnesses, with little editorial commentary from the authors themselves." -- Jacques Vallee, scientist and pioneering ufologist "The authors have captured something of the excitement that comes from researching pilot and air traffic controller sightings of unusually strange aerial phenomena. And they have collected and analyzed over fifty years of encounters with unidentified aerial phenomena in Mexico's airspace." -- Dr. Richard F. Haines, Chief Scientist, National Aviation Reporting Center on Anomalous Phenomena (NARCAP) Authors Carlos Guzman and Alfonso Salazar are two of Mexico's most experienced and highly-regarded UFO researchers. For decades, they have quietly conducted exhaustive research into their country's most remarkable UFO cases, especially encounters involving aviation. The authors have appeared in major UFO-related documentaries on the History Channel, Discovery Channel, Infinito, and other media outlets. They have also spoken about UFOs on numerous radio programs, as well as at many conferences. Guzman and Salazar's book "Ovnis y la Aviación Mexicana," of which this is the revised, updated English translation, is considered a classic work in UFO research literature and has received unbounded praise from the UFO research community throughout the world.