Doberman Dan is a 20-year serial entrepreneur and direct response copywriter. He has worked in a variety of niches but his specialty has been the health, fitness and bodybuilding markets. Dan has started and built 3 of his own supplement businesses and sold two of them, enjoying two different bouts of mini-retirement. He has recently been hired by a $600 million/year company to help them start a brand new supplement division. He has been publishing The Doberman Dan Letter since 2011 and has many of the most successful direct marketers in the world as subscribers. Dan has written hundreds of successful ads, direct mail packages, websites, e-mail marketing campaigns, feature articles, and newsletters. His ads and articles have appeared in Entrepreneur, Investors Business Daily, Penthouse, MuscleMag International, Flex, Muscle & Fitness, Men’s Edge, IronMan, Muscular Development, Reps!, Exercise For Men Only, Natural Bodybuilding & Fitness, The National Enquirer Weekly World News, and numerous mainstream newspapers and magazines.