Catherine Barr studied Ecology at Leeds University and trained as a journalist. She worked at Greenpeace International for seven years as a wildlife and forestry campaigner and has a long-running interest in environmental issues.

While working as an editor at the Natural History Museum, she researched and wrote two major summer exhibitions: Dinosaurs of the Gobi Desert and Myths and Monsters. Her previous books for Frances Lincoln are The Story of Life and Elliot's Arctic Surprise.

She lives on a hill near Hay-on-Wye in Herefordshire with her partner and two daughters.

Christiane Engel is an award-winning children's book writer and illustrator whose work includes ABC Yoga and ABC Mindful Me (Quarto).

She loves creating quirky characters, map illustrations and using her own hand-lettering in her projects across publishing and advertising. Christiane lives in South East England with her family.