Since his days as Men's Health's first Fitness Editor, Murphy has interviewed hundreds of professional and Olympic athletes, in addition to many of the world's top fitness experts, nutritionists, trainers and exercise physiologists. To date, Murphy is the author of the best-selling books Men's Health's The Body You Want in the Time You Have, The Men's Health Gym Bible, Men's Health's Ultimate Dumbbell Guide and Men's Health's Testosterone Transformation.
Top agents and managers alike utilize Murphy's versatility on ghostwritten and co-authored projects for their clients. Being able to write in a masculine, feminine or neutral style has allowed Murphy to collaborate with an assortment of celebrities and experts needing their unique style captured for books, magazine articles, non-fiction proposals and other behind-the-scenes projects. Just a few of his partnerships have included projects with many globally-recognized celebrities, including Denis Leary, J. P. Dejoria, Jaclyn Smith, Laila Ali and Ice T.
In addition to writing books for publishers such as Rodale, Meredith, Harper Collins and Perigee Trade, Murphy is also utilized for other book-related projects, whether as the creator of customized chapter content, or, as a technical supervisor of exercise-specific photo shoots. His expertise has been called upon for many projects, including several adaptations of the New York Time's bestselling Abs Diet series.