It’s what you would expect from this pairing and then just a touch more genius. If you’re not already aware of their work, we suggest you rectify that immediately. Filled with original storylines, uncomplicated but meaningful text, a discernible humour and instantly recognisable artwork, there’s everything to appreciate about their work.[…] A story with a perfectly simple premise executed to perfection in the only way Barnett and Klassen know how.” ― Picture Books Blogger

“Klassen’s restrained earthy palette and minimalist scenes (those eloquent eyes again), are in perfect harmony with Barnett’s even sparer, deadpan text allowing readers to step into the narrative landscape and fill for themselves, the host of gaps left by the book’s genius creators. Prankish play or something more sinister? I come down on the side of the former. This book is the first of a planned trilogy from this formidable team: I eagerly anticipate the next one … and the next.” ― Red Reading Hub

“Mac Barnett’s wily story and Jon Klassen’s eyes-tell-all illustrations make Triangle a really fun read-aloud for preschoolers, early elementary kids, and their adults.” ― Boing Boing

“The images are deceptively simple; the characters inhabit a world of triangles, squares and the “shapes with no names”. Each is rendered beautifully. As with Klassen’s solo work, the eyes reveal everything about the characters, bring two basic shapes-on-legs to life.” ― Irish Times Weekend

“Brilliant and hilarious, award-winning Jon Klassen and Mac Barnett’s Triangle is the gem of a book.” ― Julia Eccleshare LoveReading, Book of the Month

Mac Barnett is the author of several picture books, including Chloe and the Lion and Guess Again!, which TIME Magazine named the no. 2 Picture Book of 2010. He also writes the Brixton Brothers series of mysteries. Mac is the founder of the Echo Park Time Travel Mart, a convenience store for time travellers, and serves on the board of 826LA, a not-for-profit writing and tutoring centre in LA. His collaborations with Jon Klassen, Extra Yarn and Sam & Dave Dig a Hole, have both won the Caldecott Honor. He lives in California, USA.

Jon Klassen has created illustrations for popular series The Incorrigible Children of Ashton Place and served as an illustrator on the animated feature film Coraline. His illustrations for Caroline Stutson's Cats Night Out won the Governor General Award in 2010. I Want My Hat Back is the first book he has both written and illustrated. Originally from Niagara Falls, Canada, he lives in Los Angeles, USA.