FRED KOFMAN is Advisor of Leadership Development at Google, and formerly the Vice President of Executive Development at LinkedIn, where he worked with the top CEO's and executives around the world. Born in Argentina, Kofman came to the United States as a graduate student, where he earned his PhD in advanced economic theory at U.C. Berkeley. He taught management accounting and finance at MIT for six years before forming his own consulting company, Axialent, and teaching leadership workshops for corporations such as General Motors, Chrysler, Shell, Microsoft, and Citibank. At its height, his company had 150 people and created and taught programs to more than 15,000 executives. Sheryl Sandberg writes about him in her book Lean In, claiming Kofman "will transform the way you live and work."