A world of UFOs

"UFOs are a truly global phenomenon. Although many of the best known cases have taken place in North America, amazing stories of witness' encounters with strange disc-shaped objects have come from every corner of the globe. From a floating platform watched by dozens in Indonesia, to a Saturn-shaped object that flew over a ship off the coast of Brazil, to a landing Down Under, UFOs have been baffling people and making headlines around the world. What are some of these most interesting cases and which ones seem most mysterious? And what can one the world's foremost researchers tell us about UFOs?"--Publisher's description.