Julia Donaldson is the author of some of the world's best-loved children's books, including modern classics The Gruffalo and The Gruffalo's Child, which together have sold over 17 million copies worldwide, and the hugely successful What the Ladybird Heard adventures. Julia also writes fiction, including the Princess Mirror-Belle books illustrated by Lydia Monks, as well as poems, plays and songs - and her brilliant live shows are always in demand. Sara Ogilvie is an award-winning illustrator and printmaker who won the 2011 Booktrust Best New Illustrator Award. The first picture book that she illustrated, Dogs Don't Do Ballet, was also shortlisted for the Roald Dahl Funny Prize.