2010 - Illinois Monarch Award, Illinois School Library Media Association, Winner
2009 - Pennsylvania Young Reader's Choice Awards, Pennsylvania School Librarians Association, Winner
2008 - Black-Eyed Susan Award, Maryland Educational Media, Winner
2008 - Children’s Choice Picture Book Award, Washington Library Media, Commended
2008 - Libris Award – Children's Author of the Year, Canadian Booksellers Association, Winner
2008 - Libris Award – Children's Illustrator of the Year, Canadian Booksellers Association, Winner
2008 - North Carolina Children’s Book Award, Saskatchewan Young Readers’ Choice, Winner
2008 - Shining Willow Award, Read Boston, Winner
2007 - Amelia Frances Howard-Gibbon Illustrator’s Award, Ontario Library Association, Winner
2007 - Best Read Aloud Book Award, International Reading Association, Commended
2007 - Blue Spruce Award, Canadian Toy Testing Council, Winner
2007 - Childrens' Choices, Canadian Children’s Book Centre, Commended
2007 - Great Book of the Year, ALA, Winner
2007 - Independent Publisher Book Awards – Bronze Medal, NCTE, Winner
2007 - Marilyn Baillie Picture Book Award, ReadBoston, Commended
2007 - Notable Children’s Books, ForeWord Magazine, Winner
2007 - Notable Children’s Books in Language Arts, Children’s Book Sense, Winner
2007 - Ruth and Sylvia Schwartz Children’s Book Award, , Winner
2006 - Best Read Aloud Book Award, , Commended
2006 - Book of the Year Award, , Commended
2006 - Cybils - Children’s and YA Bloggers’ Literacy Awards, , Winner
2006 - Le Prix de la Librarie Millepage (in Vincennes, France), , Winner
2005 - Summer Pick, , Commended