a book first "useful"

A perfect size for reading with a child being acquired cleanliness, including a reading on the pot.
The pages are icy, so virtually immune to everything!
The illustrations are classic, can be a bit dated for my taste.
For the text, it is made of phrases such as "subject-verbe- complement" extremely simple to be assimilated by very young children. Remember that this book is first "useful" in the sense that it must give the key to the child to understand the importance of being clean.
What makes unfortunately reading this book particularly daunting! And when the child asks multiple readings in a row, this is torture. The characters do not have, so, many terrain.
My son loved this book, but was not clean thanks to it.