PSYCHOLOGY
(4) YA Extraterrestrial Life series. Aliens as fact and fiction and the basis for their existence (or lack thereof) are recounted in painstaking detail in this series. The books are generally accessible. For some (especially Search), strong interest and aptitude in astronomy and physics would help comprehension. Some drawings and photographs, along with sidebars, help liven up these textbooklike volumes. Reading list, websites. Ind. Review covers these Extraterrestrial Life titles: Are Extraterrestrials a Threat to Human Life?, The Search for Extraterrestrial Life, Aliens in Pop Culture, Alien Encounters, and UFOs.

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