Perfect for little hands, Countablock features thick pages cut into the shape of each numeral, creating a peek-through guessing game around the number form itself. One acorn becomes . . . one oak tree! From snowmen to puddles and eggs to chicks, quantities are illustrated twice: both before and after their “transformations.”

As children interact with the pages, they will familiarize themselves not only with the numbers 1–100 and associated quantities, but with each numeral’s physicality—angles, holes, and curves, both front and back. Numerals include 1–10, and 20–100 counted by tens for easier understanding.

Like other books in the Block Book series such as Alphablock, Cityblock, Dinoblock, and Buildablock, Countablock features die-cuts on every spread. In addition, this book ends with two special pages that fold out to reveal a grand finale illustration of 100 puzzle pieces.