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Joni E. Johnston, Psy.D.
Joni E. Johnston, Psy.D, is a clinical/forensic psychologist, licensed private investigator, and CEO of WorkRelationships, an employee relations consulting firm. She is the author of numerous books and articles, including The Complete Idiot's Guide to Psychology, 4th Edition.
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The human equation looks at the dark side of human nature, with a special emphasis on women and crime. Topics include female serial killers, Munchausen by proxy, cult leaders, and the psychology of evil.