A unique piece: This is the book written by John Douglas, Robert Ressler, Ann Burgess and Allan Burgess, following the interviews they conducted with 36 serial killers, including Ed Kemper, in the 1980s and 1990s. It’s an encyclopedia that classifies the elements of crime, and the many different criminal profiles. This is the copy of the book that Douglas gave Kemper as a gift when it was published, and Kemper gave it to one of his friends in 1995. It is signed by both Douglas and Kemper.

This book is part of my collection of true crime collectibles.