The second installment in the shape trilogy from the dynamic dream-team of Jon Klassen and Mac Barnett.

"A typically original delight” Daily Mail

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.