Square shape activities preschool free printable Artofit Square Shape PNG Transparent Images Square : The Shapes Series: Book 2 Mac Barnett, Jon Klassen Square Geometry Definition Different Types Of Squares at Levi Skipper blog. Every day, Square brings a block out of his cave and pushes it up a steep hill. This is his work. When Circle floats by, she declares Square a genius, a sculptor! "This is a wonderful statue," she says. "It looks just like you!" But now Circle wants a sculpture of her own, a circle! Will the genius manage to create one? Even accidentally? About the Authors Mac Barnett and Jon Klassen have made four books together: Sam and Dave Dig a Hole, Extra Yarn, Triangleand this book, Square. Jon is also the creator of the much acclaimed Hat trilogy, which includes I Want My Hat Back, the Kate Greenaway and Caldecott Medal winner This Is Not My Hat and We Found a Hat. They both live in California, USA, but in different cities. Jon is from Canada, Mac is not.