This book is about Circle. This book is also about Circles friends, Triangle and Square. Also it is about a rule that Circle makes, and how she has to rescue Triangle when he breaks that rule. With their usual pitch-perfect pacing and subtle, sharp wit, Mac Barnett and Jon Klassen come full circle in the third and final chapter of their clever shapes trilogy.

• Author:Mac Barnett
• Illustrator:Jon Klassen
• Hardcover: 48 pages
• Dimensions: 9 x 0.47 x 9 inches
• Grade level: Kindergarten – 4