If we begin at the beginning – the first book that comes to mind is The Cat in the Hat. There are so many mathematical concepts woven through the entire story that it would be impossible to read it without reinforcing the math. By the time we meet Thing 1 and Thing 2, we have rhymed, predicted, repeated, and sequenced. Thing 1 and Thing 2 are icing on the cake.
When I was little, my dad used to read Horton Hatches the Egg just before we went to sleep. He would bring up carrot sticks and salt and fill our belly buttons with salt and we would dip our carrot sticks in the salt and munch away while he read. I never knew how much that book stuck with me until years later when I saw a copy and I realized that I knew every word by heart. I guess he read it a LOT.
Most of us have a Dr. Seuss memory. What is yours?