Almost 37 years ago, Alona Frankel wrote and illustrated a book for her son on how to use the potty. Once Upon a Potty — Boy and Once Upon a Potty — Girl ($8 each) are classic books on potty ...

Beverly Cleary on her 95th birthday. A new book by Maurice Sendak-- Deborah Netburn. Images: ‘Once Upon a Potty,’ the girl edition, top, and boy edition, below.