David Polonsky has illustrated several picture books and also works as a teacher of animation and illustration. He was head illustrator for the film Waltz with Bashir, a critically-acclaimed animated documentary and is the illustrator of the new, highly-acclaimed Anne Frank graphic novel.

Shira Gefen comes from Tel Aviv and is a playwright, director, actor and children's author. She has written four books for children. The Heart Shaped Leaf has also been translated into Swedish, Arabic and Persian.