Somerville, Massachusetts : Nosy Crow, an imprint of Candlewick Press, 2017
First edition.

Somerville, Massachusetts : Templar Books, an imprint of Candlewick Press, 2015
First U.S. edition.

New York : Dutton Children's Books, 2008

Somerville, Massachusetts : Templar Books, an imprint of Candlewick Press, 2013
First U.S. edition.

Somerville, Massachusetts : Templar Books, an imprint of Candlewick Press, 2020
First U.S. edition.

Somerville, Massachusetts : Templar Books an imprint of Candlewick Press, 2020
First U. S. edition.

Somerville, Massachusetts : Templar Books, an imprint of Candlewick Press, 2014
First U.S. edition, [reinforced trade edition].

Somerville, Massachusetts : Nosy Crow, 2017
Board book.

Somerville, Massachusetts : Nosy Crow, an imprint of Candlewick Press, 2015
First U.S. edition.