John Mack is one of the most well-known voices on the pharmaceutical industry. Known as "pharmaguy" on Twitter, John has several outlets through which he provides "constructive criticism" on the industry, and a wide fan base who follows his insightful commentary. Celebrating 20 years of online writing this year, John has cemented himself as an authority on the industry through podcasts, newsletters, and other venues such as the Pharma Marketing Blog and Pharma Marketing News. In addition to helping us all stay abreast of the industry, John is also an experienced executive with a background in interactive technologies, medical privacy, and pharmaceutical marketing, and is now Chief Pundit at pharmaguy.com. In this interview, John provides great insights into the pharma industry and discusses key opportunities for system improvement.