Kate Simpson was raised on a diet of children's books, but it was her fascination with science that led her to her first career as a chemical engineer. Following the birth of her children, Kate re-discovered her love of picture books and soon decided to try her hand at writing them. She was quickly hooked. Kate now juggles a full-time job as an engineer with her writing work. Her books feature Australian history, science, curious kids and powerful women. How To Move a Zoo is Kate's fifth picture book. Owen Swan is an award-winning Australian illustrator whose work includes Out by Angela May George (Picture Book of The Year CBCA Shortlist & winner of the AAFT Book Award for Children's Literature), My Friend Tertius by Corinne Fenton (a CBCA Notable); the bestselling picture book Anzac Biscuits, along with Newspaper Hats by Phil Cummings (winner of the Chronos Prize for Literature in France). As well as his picture book collaborations, Owen is also a musician and animator. He lives in Sydney, Australia.