Biography
John Edward Douglas is a former special agent and unit chief in the United States Federal Bureau of Investigation. He was one of the first criminal profilers and has written books on criminal psychology. - Wikipedia
Books by John E. Douglas
When a Killer Calls
Killer's Shadow
Killer Across the Table
The Killer Across the Table: Unlocking the Secrets of Serial Killers and Predators with the FBI's Original Mindhunter
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Crime classification manual
John Douglas's guide to landing a career in law enforcement
John Douglas's guide to police officer exams
John Douglas's guide to the California police officer exam
Anatomy of Motive
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Guide to careers in the FBI
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Law & disorder
Pocket guide to the Crime classification manual
Sexual Homicide
The anatomy of motive
The cases that haunt us