Hoffman is a former Associated Press reporter and author of the first book on Ernst Zündel's 1985 Trial, a biography that has undergone many printings. He is an indefatigable Revisionist researcher. He publishes a monthly newsletter titled Revisionist History, and is the author and publisher of numerous books and booklets. A noted, talented speaker and producer of Revisionist videos, Hoffman is also one of Revisionists' most skilled and passionate writers. He has drawn the Holocaust Lobby's ire for his grass roots street level activism and manly courage.