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. She was Children's Laureate 2011-13 and has been honoured with a CBE for Services to Literature. Julia and her husband Malcolm divide their time between West Sussex and Edinburgh.

Lydia Monks is one of the most original picture book artists working today. Her distinctive use of colour and collage has won her critical acclaim and several awards, including the Smarties Prize. Her collaborations with Julia Donaldson include The Singing Mermaid, the Princess Mirror-Belle books, Sugarlump and the Unicorn and the phenomenally successful What the Ladybird Heard. Lydia lives in Sheffield.