Jeff Maynard is an Australian non-fiction author specialising in polar history and underwater exploration. A world authority on diving history, he was a founding member of the International Historical Diving Society and President of the Australian chapter of the society, and is editor of the quarterly magazine, Classic Diver. He presents papers at international diving events, and is a sought-after speaker for radio interviews. A member of the Explorers Club, he is also a book reviewer, radio commentator and editor.