Laugh and learn with fun facts about counting, adding, and dividing with 100—all told in Dr. Seuss’s beloved rhyming style and starring the Cat in the Hat!

“Get ready to count, multiply, and divide. We don’t want to be late, so jump in and let’s ride!”

The Cat in the Hat’s Learning Library series combines beloved characters, engaging rhymes, and Seussian illustrations to introduce children to non-fiction topics from the real world! When the Cat in the Hat visits on the 100th day of school, he teaches kids how to:



add and subtract
skip count
multiply and divide in groups of 2, 5, 10, and 25
and much more!


Perfect for story time and for the youngest readers, The 100 Hats of the Cat in the Hat: A Celebration of the 100th Day of School also includes an index, glossary, and suggestions for further learning.

Look for more books in the Cat in the Hat’s Learning Library series!
High? Low? Where Did It Go? All About Animal Camouflage
Is a Camel a Mammal? All About Mammals
A Great Day for Pup: All About Wild Babies
Would You Rather Be a Pollywog? All About Pond Life
Happy Pi Day to You! All About Measuring Circles
I Can Name 50 Trees Today! All About Trees
Fine Feathered Friends: All About Birds
My, Oh My--A Butterfly! All About Butterflies
Oh Say Can You Seed? All About Flowering Plants
Inside Your Outside! All About the Human Body
Ice is Nice! All About the North and South Poles

Illustrated by: Aristides Ruiz, Joe Mathieu