Missing and Unsolved: Ireland's Disappeared: The Unsolved Cases of Ireland's Missing Persons

The Grangegorman Murders: Dean Lyons, Mark Nash and the Story behind the Grangegorman Murders

Without Trace – Ireland's Missing: Profiling the Disappearances of Men, Women and Children in Ireland since 1970

The Night Stalker: The Disturbing Life and Chilling Crimes of Richard Ramirez

World's Worst Crimes

Lifers: Ireland's evil killers and how they were caught

Serial Killers: Horrifying True-Life Cases of Pure Evil

Missing: The Unsolved Cases of Ireland's Vanished Women and Children

Psycho USA: Famous American Killers You Never Heard Of

Missing, Presumed

Serial Killers Encyclopedia: The Book Of The World's Worst Murderers In History

Helter Skelter: The True Story of the Manson Murders

The World's Worst Serial Killers: Monsters whose crimes shocked the world

The World's Worst Psychopaths: The Most Depraved Killers In History

I'll Be Gone in the Dark: The #1 New York Times Bestseller

The Killer Book of Serial Killers: Incredible Stories, Facts and Trivia from the World of Serial Killers

My Life Among the Serial Killers: Inside the Minds of the World's Most Notorious Murderers

Whoever Fights Monsters: My Twenty Years Tracking Serial Killers for the FBI

Hard Cases – True Stories of Irish Crime: Profiling Ireland's Murderers, Kidnappers and Thugs