<p>This book provides a guide to the people, places, artifacts, events, terminology, scientific concepts, groups, critical documents, and code phrases associated with the Manhattan Project. It is of interest to all readers/researchers (students, journalists, policy-makers, specialist and non-specialist instructors and scientists) who need to rapidly access authoritative, self-contained definitions/descriptions of such items and references to authoritative sources. The individual entries are extensively cross-referenced.</p>