The first part of the book is a mixture of psychology and trendy neuroscience research that presents the evidence for Mr Shermer's central claim: that, instead of shaping belief around painstakingly gathered, soberly judged evidence, people most often decide upon their beliefs first, and then use an impressive range of cognitive tricks to bend whatever evidence they do discover into support for those pre-decided acts of faith.

ECONOMIST: A medley of aliens and conspiracy theories