Marco Iansiti, the David Sarnoff Professor of Business Administration at Harvard Business School, also heads the school's Technology and Operations Management Unit and the Digital Initiative. Iansiti is an expert on digital innovation, with a special focus on strategy and business and operating model transformation. He advises Global 1000 companies on digital strategy and transformation and has conducted research on a variety of organizations, including Microsoft, Facebook, IBM, Amazon, Alibaba, and Google, among many others. He is the author of several books and has authored more than 100 articles, cases, and notes.