Award-winning investigative journalist Ross Coulthart has been intrigued by UFOs since mysterious glowing lights were reported near New Zealand's Kaikoura mountains when he was a teenager. The 1978 sighting is just one of thousands since the 1940s, and yet research into UFOs is still seen as the realm of crackpots and conspiracy theorists.

Them is the first book ever to examine the intent of the presence known as "aliens" or "visitors" from the perspective of what both civilian and military close encounter witnesses report happening to them.

In Dimensions, Dr. Jacques Vallee reexamines the historical record that led to the modern UFO phenomenon and to the belief in alien contact. He then tackles the enigma of abduction reports, which come from various times and various countries, as well as the psychic and spiritual components of the contact experience. In the last portion of the book, he notes the factors that inhibit research into the phenomenon - the triple coverup and political motivations - and concludes that the extraterrestrial theory is simply not strange enough to explain the facts.

With the support of former White House Chief of Staff John Podesta, investigative reporter Leslie Kean draws on her research to separate fact from fiction and to lift the veil on decades of U.S. government misinformation. Throughout, she presents irrefutable evidence that unknown flying objects - metallic, luminous, and seemingly able to maneuver in ways that defy the laws of physics - actually exist.

Now on audio! The best-selling exposé that ends the decades-old controversy surrounding the infamous and mysterious crash of an unidentified aircraft at Roswell, New Mexico, in 1947.