John Sullivan is Emeritus Professor of Christian Education at Liverpool Hope University, UK. He is the author and editor of nine books on aspects of Christian education.

Jessica Gibson is an illustrator from Detroit who has loved drawing since she was a little girl. A love for animals, traveling, and reading has always inspired her and led to a career illustrating children's books. Jessica illustrates picture books, spot pieces, packaging design, and surface patterns, all of which she hopes capture her sense of fun.