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.

Jenni Desmond graduated from a Masters Degree in Children's Book Illustration at the Cambridge School of Art (UK) with distinction and her debut 'Red Cat Blue Cat' won the Cambridgeshire Read it Again! Award in 2012.

Her books have been translated into over a dozen languages since, and in 2015 Desmond was named Best Emerging Talent (Illustrator) at the Junior Design Awards (UK).

In 2016 she was made a Maurice Sendak Fellow and her book 'The Polar Bear' became a 'New York Times Best Illustrated Children's Book' of the year.

Her work is admired for its narrative and visual depth, being at once complex and simple. When Jenni is not in her studio, you'll find her cooking, cycling and looking for adventure.