It's Potty Time for Boys addresses a natural step in a child's development. With this book and a little patience, potty training can be easy and rewarding for both parent and child. Children will love the sound button, which features a real toilet flush sound. They will also enjoy helping their parent fill out the progress chart. This book is a win-win for both parent and child. Featuring fun, vivid illustrations, full color throughout, and sturdy board book construction. Over 2 million copies sold in previous formats. This New Format features ClearSound Technology. Show Less