Matt Goodfellow was a primary school teacher for more than ten years before becoming a full-time poet and author. Shu Lin's Grandpa is his first book with Candlewick Press. He lives with his wife and children in Manchester, England.

Yu Rong grew up in the countryside of China, where she began her studies in Chinese painting and contemporary art. She is the author-illustrator of A Lovely Day for Amelia Goose and the illustrator of Tracks of a Panda by Nick Dowson. She lives with her husband and children in the countryside of Cambridge, England.