Author MARY AULD is an award-winning children’s author, specialising in information books, from music and art to history and science. Auld is the pen name of Rachel Cooke, editorial director at Hachette Children’s for many years. Illustrator STEPH MARSHALL is a freelance illustrator and printmaker based in Berkshire. She has a particular fascination with maps and her work is often inspired by travel. Working predominantly with digital media, she creates bright, bold and playful illustrations.