Author Moira Butterfield 's list of children's books includes a number of internationally successful titles spanning non-fiction and fiction for all ages up to 11. She has been highly commended by the US Library of Congress for her work, and her books have featured on the national UK school curriculum. She has written a number of art and craft books for children and run craft workshops at National book festivals. Gwen was brought up and went to school in Wales. Originally she had her heart set on becoming a Naturalist as she loved studying insects and drawing them. Her trips abroad when she was young are associated with finding new and strange-looking creatures! After school she migrated north to Edinburgh to study art where she graduated with a First in illustration and was awarded the Helen A. Rose Bequest for art. Gwen's first picture book, Guess What I Found In Dragon Wood (text by Tim Knapman) was published by Puffin, as was The Bog Baby by Jeanne Willis, and a collaboration with Jenny Nimmo, The Beasties , by Egmont.

She has since published many more, including two about Bear and Bird which she has written herself.