Etan Ilfeld is a London-based entrepreneur and the founder of Tenderbooks, Tenderpixel gallery, Watkins Mind Body Spirit Magazine, Watkins Wisdom Academy, PlayStrategy.org, co-founder of Repeater Books, and the owner and managing director of Watkins Books, Watkins Media, and the Mind Sports Olympiad. Ilfeld is the inventor of Diving chess and the author of Beyond Contemporary Art, co-author of Duchamp versus Einstein and the creator of the Synchronicity Oracle.