Once Upon a Potty -- Girl

One day, Prudence's grandma gave her a big gift. Prudence opened it and saw that there was a strange thing inside. Not a hat, not a bowl, a plate, or a flowerpot. This is a small toilet... The book features Girls' Small Toilet-let children learn to pee and Uh-huh on the toilet. This book was published and became the best-selling book in the United States, the Netherlands, Israel, Japan and other countries. Since 1900, hardcover and animated films have sold more than 4 million copies in the United States.