John Campbell serves as Chief Executive Officer of Cambium Learning Group. Mr. Campbell served as President of Cambium Learning Technologies from December 2009 until March 2013, and COO of Voyager from January 2007 through December 2009. He joined ProQuest in January of 2004, which sold off its library business and changed its name to Voyager in January of 2007. Before joining Cambium Learning Group, Mr. Campbell served as Chief Operating Officer and business unit head of a research-based reading company (Breakthrough to Literacy) within McGraw-Hill. Prior to joining Breakthrough/McGraw-Hill, he served as Director of Technology for Tribune Education. Additionally, Mr. Campbell has experience as General Manager of a software start-up (Insight Industries Inc.) and as Director of Applications and Technical Support for a hardware manufacturer (Commodore International). John has also served on the Education Board for the Software Information Industry Association (SIIA).