Christopher Lloyd graduated with a first-class degree in history from Cambridge University. He began his career as a journalist with The Sunday Times newspaper, before setting out to write books. After his adult world history book, What on Earth Happened?, Christopher turned his attention to children's books. He is the author of the children's non-fiction book Absolutely Everything! and the adult non-fiction book What on Earth Happened!, and the editor of the international bestseller Britannica All New Children's Encyclopedia. Together, his books have sold more than 1.5 million copies worldwide.

Mark Ruffle is an illustrator and graphic designer living in the UK. Since he was young, Mark has drawn imaginary worlds, fantastic animals and marvellous humans. He is now lucky enough to draw for his job and creates fun, colourful, engaging illustrations for a wide range of ages and uses. When he's not doodling, he can be found walking his two dogs and admiring the wildlife and rolling hills where he lives.

Jack Tite is an award-winning illustrator, motion designer and author based in Gloucestershire. He graduated from De Montfort University with a first-class degree in Graphic Design and Illustration. Influence by vintage and mid-century illustrators, his style features simplified shapes, gritty textures and a strict colour palette. Jack is a dog-lover, food enthusiast, computer nerd, avid drummer and jogger.