Multi-award-winning, New York Times best-selling duo Mac Barnett and Jon Klassen conspire again on a slyly funny tale about some very sneaky shapes. Meet Triangle. He is going to play a sneaky trick on his friend, Square. Or so Triangle thinks ... With this first tale in a new trilogy, partners in crime Mac Barnett and Jon Klassen will have readers wondering just who they can trust in a richly imagined world of shapes. Visually stunning and full of wry humor, here is a perfectly paced treat that could come only from the minds of two of today's most irreverent and talented picture book creators.

Release date supplied by publisher. Issued as a Wonderbook, a pre-loaded audiobook player permanently attached to a hardcover book. Powered by a rechargeable battery; USB charger required for recharging. Audiobook player has 2 modes. Read-Along mode narrates the story. Learning mode asks questions related to the story. Print book published by Candlewick in 2017. Audiobook originally released by B1 Studios.