I too read his poem.I love is book Giving time
Do you know The Giving Tree?
Yes i Know. It is easily understood by children 
Many teachers have it a part of the class.
Yes because the picture speaks the content
His books are also all beautifully illustrated.
You can experience the childhood family life in his books. Do you identified that? 
Sure. I recall one about having a sister for sale lol.
Wow, That seems good. He is the best cartoonist i ever seen. 
His drawings are great but look so effortless.
Oops! He is effortless intelligent
I feel like he and Dr. Seuss would have gotten along