Mo Willems writes wonderful children's books filled with life lessons that kids can easily understand and learn from.
My favorite author willems like it
Our favorite series by Mo Willems to read together is the Elephant and Piggie series. 
Yes same too me like it
Have you heard of "Should I share my Ice Cream?"? It's a great books for younger kids to learn about the importance of sharing with friends. 
Oh very interesting books reading
He also has a book called "Waiting is not Easy" about how sometimes, you have to wait for things and it teaches you about how rewarding it can be to wait for something you really want. 
Waiting is not easy very important
Agree. It's little lessons like that that kids need to learn before going to school. Sharing, waiting, be caring, etc. His books are a great way to introduce these. 
Yes very good idea like it