With over 16 million workout videos sold since 1980, Kathy Smith has become a household name in fitness. read more...
John Biggs
John Biggs is a New York-based author and consultant. John has published work in The New York Times, Laptop, Men's Health, Linux Journal, Popular Science and others. read more...
Matt Brzycki
Matt Brzycki is the Assistant Director of Campus Recreation, Fitness at Princeton University in Princeton, New Jersey. read more...
Kathy Smith
