Jeff Maynard is an internationally recognised non-fiction author from Australia, who has written many bestselling books. He brings his knowledge, expertise and humour to YouTube with an range of unexpected videos often with little known facts about underwater exploration, the development of scuba, and early aviation among other topics.
Jeff's latest book - The Frontier Below - is a history of human exploration from the surface to the bottom of the ocean.
You can find out more about Jeff and his books and articles at:
www.jeffmaynard.net/