Dr Anthony Masters is a Chartered Statistician, a Statistical Ambassador for the Royal Statistical Society, and a frequent blogger and explainer of statistical ideas.

Alan Marks began his career illustrating for magazines and newspapers. His first children's book Storm, written by Kevin Crossley Holland, won the Carnegie Medal. Alan now illustrates a wide variety of subjects, from nursery rhymes to war poetry. He is the illustrator of the Boston Globe-Horn Book Award Honor Book A Mother’s Journey, Behold the Beautiful Dung Beetle, Planet Zoo, The Spirit of the Forest, and more. Alan lives in an old house in the Kent countryside with his wife and two daughters.