Mark Johnson is chairman of Innosight, a strategic innovation consulting and investing company with offices in Massachusetts, Singapore, and India, which he cofounded with Harvard Business School professor Clayton M. Christensen. He has consulted to Global 1000 and start-up companies in a wide range of industries--including health care, aerospace/defense, enterprise IT, energy, automotive, and consumer packaged goods--and has advised Singapore's government on innovation and entrepreneurship.Mark's most recent work has focused on helping companies envision and create new growth, manage transformation, and achieve renewal through business model innovation. This work is the subject of the McKinsey award-winning Harvard Business Review article, "Reinventing Your Business Model," coauthored by Clayton Christensen and Henning Kagermann. Mark also coauthored The Innovator's Guide to Growth (Harvard Business Press, 2008), recently coauthored "How to Jump-Start the Clean-Tech Economy" (Harvard Business Review, 2009), and has published articles in the Sloan Management Review, Forbes.com, BusinessWeek Online, Advertising Age, and National Defense.Prior to cofounding Innosight, Mark was a consultant at Booz Allen Hamilton, where he advised clients on managing innovation and implementing comprehensive change programs. Before that, he served as a nuclear power-trained surface warfare officer in the U. S. Navy.Mark received an MBA from Harvard Business School, a master's degree in civil engineering and engineering mechanics from Columbia University, and a bachelor's degree with distinction in aerospace engineering from the United States Naval Academy. He currently serves on the board of the U.S. Naval Institute.Mark, his wife, Jane Clayson Johnson, and their children live in Belmont, Massachusetts.