From the back flap of Who Moved My Cheese?:

Spencer Johnson, M.D., is one of the world's most respected thinkers and beloved authors.  His ten international bestselling books include Who Moved My Cheese?  An A-Mazing Way to Deal with Change, the most widely read book on change; The One Minute Manager®, the world's most popular management method for more than two decades, coauthored with Kenneth Blanchard; and his newest #1 international best-seller, The Present.  Dr. Johnson is often referred to as "the best there is at taking complex subjects and presenting simple solutions that work."

He earned a B.A. degree in psychology from the University of Southern California, an M.D. degree from the Royal College of Surgeons, and medical clerkships at the Mayo Clinic and the Harvard Medical School.  More recently, he served as Leadership Fellow at the Harvard Business School.

His work has captured the attention of major media, including the Associated Press, the BBC, CNN, Fortune magazine, The New York Times, the Today show, Time magazine, USA Today, and United Press.

He is Chairman of Spencer Johnson Partners, LLC, a company devoted to helping people and organizations change successfully, and is a 2004 Telly Award winner for Who Moved My Cheese?  The Video.  More than forty million copies of Spencer Johnson's books have been read worldwide, in more than forty-two languages.