“Talking with Serial Killers,” by criminologist Christopher Berry-Dee, delves into the author’s interactions and interviews with some of the world’s most notorious murderers. Berry-Dee has spent years corresponding with and visiting convicted serial killers, with the aim of gaining insights into their psychology and motivations. In his book, first published in 2003, he shares his experiences and conversations with several high-profile murderers, including Dennis Rader — known as the BTK killer — Arthur Shawcross, and Joel Rifkin. It provides a dark and in-depth perspective into their minds, exploring childhoods, early warning signs, and the factors that led them to become serial killers. Berry-Dee highlights the motivations, desires, and disturbing fantasies — at times in graphic detail — that drove their crimes, but he does not revere them. His probe into the dark side of human behavior is carried out responsibly and with sensitivity. Berry-Dee began corresponding with the likes of Genesee River killer Shawcross and the so-called Happy Face murderer Keith Hunter Jesperson in the 1990s for his first book “Talking with Serial Killers,” and he has since authored several other books on the subject. He has appeared in several television documentaries related to true crime, sharing his expertise and insights into the minds of serial killers. And he has been a consultant and contributor to programs such as “Britain’s Most Evil Killers,” and “Born to Kill?”