A timeless and quirky story about a little girl with a bottomless box of yarn. Annabelle knits jumpers for every person and animal in her town, and then starts on the town itself. Mac Barnett and Jon Klassen are the perfect partnership, and this book was their first collaboration. Extra Yarn sets the tone for their irreverent and beautiful picture books, which also include Sam and Dave Dig a Hole and Triangle.  Read our blog about what makes illustrator Jon Klassen so brilliant, and how he approaches collaboration, here.