I love Pete the Cat!!! The illustrations appear to be done in watercolor with pen and ink.
In this story, Pete is grooving in his favorite shirt. His buttons pop off and the result is early math!
Of course when Pete loves something he makes up a song about it. So there's a song about his four buttons and when they pop off he still has his belly button! Hilarious, colorful, counting fun!
Pete's low-key way of dealing with things should go in the record books with the Serenity Prayer.
Check out the clip of Pete on YouTube.