Patrick Spencer Johnson (November 24, 1938 – July 3, 2017) was an American physician and author. He was known for the ValueTales series of children's books, and for his 1998 self-help book Who Moved My Cheese?, which recurred on the New York Times Bestseller list, on the Publishers Weekly Hardcover nonfiction list. Johnson was the chairman of Spencer Johnson Partners. Source: Wikipedia (en)