Ken Lanning arguably remains one of the most famous FBI agents of all time, probably THE most famous comes to investigating unusual child sexual absue cases. His experiences, intuituve understanding of deviant minds, and creative ways of thinking are worth reading. And that's what we have here. In this section of a larger work on child sexual abusers Lanning gives us his creative but scientifically unsupported opinions about the role of child-erotica collection in the lives of true pedophiles.