Gritz is the author of three books. The first, A Nation Betrayed, was published in 1989 and contained Gritz's allegations of drug trafficking and a POW coverup, based on the Khun Sa interview. The second, Called To Serve, was published in 1992 and expanded on the previous book to cover a wide range of conspiracies,His third book is titled My Brother's Keeper and was published in 2003.