Jane Newberry's unique insight into very small children began as a puppeteer at children's parties, where she discovered what makes them laugh. For over 25 years Jane taught Early Years Music to various groups. She wrote and illustrated three song books, A Sackful of Songs, A Sackful of Christmas and Hey, What's in the Sack? before moving on to gather the many play-rhymes used in groups over the years. Jane lives in Cornwall.

Carolina Rabei is an internationally acclaimed children's book illustrator. Born in Moldova, she gained a BA in Graphic Art there and then an MA in Children's Illustration at the Cambridge School of Art. Her debut book was an illustrated edition of Walter de la Mare's poem Snow. She also wrote and illustrated the picture book Little Lost Fox (2020). As well as illustrating Big Green Crocodile for Otter-Barry Books, she illustrated Binky's Time to Fly by Sharmila Collins.