A New York Times bestselling author, Olsen has written eight nonfiction books, four novels, and contributed a short story to a collection edited by Lee Child.
The award-winning author has been a guest on dozens of national and local television shows, including educational programs for the History Channel, Learning Channel, and Discovery Channel. He has also appeared on Good Morning America, The Early Show, The Today Show, FOX News; CNN, Anderson Cooper 360, MSNBC, Entertainment Tonight, CBS 48 Hours, Oxygen's Snapped, Court TV's Crier Live, Inside Edition, Extra, Access Hollywood, and A&E's Biography.
In addition to television and radio appearances, he has been featured in Redbook, USA Today, People, Salon magazine, Seattle Times, Los Angeles Times and the New York Post.
The Deep Dark was named Idaho Book of the Year by the ILA and Starvation Heights was honored by Washington's Secretary of State for the book's contribution to Washington state history and culture.
Olsen, a Seattle native, lives in Olalla, Washington with his wife, twin daughters, three chickens, Milo (an obedience school dropout cocker spaniel) and Suri (a mini dachshund so spoiled she wears a sweater).