Behind the Badge: 365 Daily Devotions for Law Enforcement

Wiseguy: The 25th Anniversary Edition

Becoming Bulletproof: Protect Yourself, Read People, Influence Situations, and Live Fearlessly

On Spiritual Combat: 30 Missions for Victorious Warfare

Donnie Brasco

Fight for Us: Win Back the Marriage God Intends for You

Unmasked: My Life Solving America's Cold Cases

Bulletproof Marriage: A 90-Day Devotional

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

Behind the Lines: 365 Daily Challenges for Military Personnel

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

Prayers & Promises for First Responders

Under and Alone: The True Story of the Undercover Agent Who Infiltrated America's Most Violent Outlaw Motorcycle Gang

Vagos, Mongols, and Outlaws: My Infiltration of America's Deadliest Biker Gangs

Working Stiff: Two Years, 262 Bodies, and the Making of a Medical Examiner

No Angel: My Harrowing Undercover Journey to the Inner Circle of the Hells Angels

Mrs. Kennedy and Me: An Intimate Memoir

Stalling for Time: My Life as an FBI Hostage Negotiator

Killer Triggers

Vice: One Cop's Story of Patrolling America's Most Dangerous City