Math Is CATegorical ®

From the author and illustrator duo of the best-selling Words Are CATegorical® series, Math Is CATegorical® introduces basic math concepts for young readers and reveals that sometimes math is easier to show than explain! Pairing clever rhyming verse with comical cartoon cats, Brian P. Cleary and Brian Gable help children add up just how fun math can be!

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Cover: A Dollar, a Penny, How Much and How Many?
Cover: A Second, a Minute, a Week with Days in It: A Book about Time
Cover: A Fraction's Goal — Parts of a Whole
Title Season Add to Cart
A Dollar, a Penny, How Much and How Many?
A-B-A-B-A—a Book of Pattern Play
How Long or How Wide?: A Measuring Guide
On the Scale, a Weighty Tale
The Mission of Addition
A Second, a Minute, a Week with Days in It: A Book about Time
A Fraction's Goal — Parts of a Whole
The Action of Subtraction
Windows, Rings, and Grapes — a Look at Different Shapes
  • Available in limited formats
  • Soon! Spring 2026
  • New! Fall 2025
  • New! Spring 2025
Title Season Add to Cart
Math Is CATegorical ® — Paperback Set
Paperback $76.86, 9 titles
  • Available in limited formats
  • Soon! Spring 2026
  • New! Fall 2025
  • New! Spring 2025