Bret Witter is a book editor and professional writer. For eleven years, he worked as an editor for HarperCollins, Penguin Putnam, and HCI. He was also a ghost writer during that time. He became a professional writer in 2007 and works primarily as a collaborator on histories and memoirs. His first book was a collaboration with Vicki Myron on Dewey: The Small Town Library Cat Who Touched the World. His other collaborations include The Monuments Men: Allied Heroes, Nazi Thieves, and the Greatest Treasure Hunt in History with Robert M. Edsel, Until Tuesday: A Wounded Warrior and the Golden Retriever who Saved Him with Luis Carlos Montalvï¿½n, Until I Say Goodbye: My Year of Living with Joy with Susan Spencer-Wendel, and Stronger with Jeff Bauman.