Nobody's Perfect: A Story for Children about Perfectionism, Paperback/Ellen Flanagan Burns

Sally Sanders is good at everything she does, or so it seems. Secretly she is afraid that if she can't do something well, or be the best, she will feel like a failure. She is scared that she is not good enough. Gradually, through the help of her teachers and mother, Sally learns to have fun and not worry so much about being the best.