Jeff Levine

Jeff Levine came from the training floor to write The Everything Krav Maga for Fitness Book. He has owned and operated several Krav Maga and CrossFit gyms and served as Chief Combatives Officer leading the U.S. Army's Military Combatives program at Fort Hood, where technique had to hold up under real stress. That shaped the book's approach. Build the engine first, layer skill on top of it, and write a program people will actually stay with.

Away from the gym, Levine is a serial entrepreneur in Austin, Texas. He started his first company in high school and has since founded ventures in software, medical technology, and artificial intelligence. He advises founders in the DARPA accelerator at Capital Factory, serves as a business adviser to the AI Health Lab at the University of Texas at Austin, and has taught venture creation there as well as at Johns Hopkins and Texas A&M.