Conspiracy Encyclopedia

Conspiracy Encyclopedia: The Encyclopedia of Conspiracy Theories is a non-fiction reference book about conspiracy theories, with an introduction by editor Thom Burnett. It was published in 2005 by Chamberlain Bros., and in 2006 by Collins & Brown. Contributors to the work include Thom Burnett, Nigel Cawthorne, Richard Emerson, Mick Farren, Alex Games, John Gill, Sandy Gort, Rod Green, Emma Hooley, Esther Selsdon, and Kenn Thomas. The encyclopedia discusses 365 conspiracy theories, most of which are political.

The encyclopedia was positively reviewed in The Guardian, where it was referred to as a "beautifully-produced tome". It received both a positive and a negative review from two different writers in The Times. In 2008 the encyclopedia was listed as required reading in a course on conspiracy at Harvard University.