Whether you work in a business or the business of life, everyone from CEOs to high school students can gain from what they take from this story -- Spencer Johnson, M.D., author of Who Moved My Cheese?. . . companies should buy a copy for everyone from the CEO to the stock clerk -- Michelle Archer ? USA TodayI ordered and distributed sixty copies, evaluated its effect on our change effort, and then ordered five hundred more. . . . This is a gem -- Heidi King, Department of DefenseThe penguins in this book will not only steal your heart, they?ll make you a smarter person -- Mary Tyler Moore, actress, producer, director, and Academy Award nominee John Kotter is the leadership and change guru at Harvard Business School. He is the author of eleven books that have been honoured or have become business bestsellers. Professor Kotter gives speeches and seminars at Harvard and around the world. He lives in Cambridge, Massachusetts, with his wife Nancy Dearman, daughter Caroline and son Jonathan.Holger Rathgeber is the modern global manager. He works for Beckton Dickinson, one of the world's leading medical technology companies. Rathgeber is from Frankfurt and spent his first professional years in Asia. Since 2004 he has lived in White Plains, New York, with his wife Jutta and sons Daniel and Benny.