Chris Butterworth is the author of over seventy books, mostly non-fiction, and has written on subjects as diverse as disasters, hiccups, basketball and snakes. She has written a number of non-fiction titles for Walker, including Where Do Clothes Come From and Lunchbox: The Story of Your Food, winner of the American Farm Bureau's Book of the Year. She lives in Cornwall.Charlotte Voake is the author-illustrator of Ginger, shortlisted for the Kate Greenaway Medal and winner of the Nestlé Smarties Gold Award, Ginger Finds a Home and Hello Twins, one of the 2006 New York Times Ten Best Illustrated Books. She is also the illustrator of Steve Voake’s Insect Detectives and Vivian French’s Caterpillar Butterfly. She lives in Surrey.

“a breezy and zestful picture-book appreciation of trees and the changes they undergo with the cycle of the seasons.”