Bestselling author Christopher Lloyd began his career as a journalist with the Sunday Times newspaper. Then, while camping with his family, he had a critical realisation: even with a 1st class degree in history from Cambridge University and experience as a science writer, there was so much about the world he didn’t know.

So, he set out to write books that zoom out and tell the big stories, opening readers’ eyes to how seemingly unrelated events fit together and showing them multiple perspectives on the world, all in highly engaging prose and matched with lively illustration and photography.

Now, with several books in print, including the bestselling What on Earth Happened? and Absolutely Everything, Chris divides his time between writing books and delivering lectures and workshops to schools, literary festivals, and a wide range of other venues around the world. He lives in Tonbridge, Kent, UK, with his wife and two adorable terriers.

Britannica Group is a global education leader with over 250 years of dedication to seeking out facts and providing insight into the mysteries of the universe. Britannica’s mission to inspire curiosity and the joy of learning helps build the world’s future thinkers and innovators.

Mark Ruffle was born near Bristol in 1973. He graduated from the University of the West of England with a degree in Graphic Design in 1995.

After leaving college Mark worked as a visualiser, then in 1997 started working for Oxford University Press as an Art Buyer. Mark has been freelancing since 2000 and has enjoyed working for a wide variety of clients including Aardman, producing illustrations for Flash.

He has designed and illustrated web content for the BBC to accompany television programmes such as Hustle, Holby City and Bleak House. Mark works in Adobe Illustrator and is equally happy drawing illustrations for books, packaging, advertising or animation.

Jack Tite is an illustrator and motion designer from the UK. He graduated from De Montfort University with a first-class BA Hons in Graphic Design and Illustration. His work is influenced by vintage and mid-century illustrators, with simplified shapes, gritty textures and a strict colour palette.

He is interested in prehistoric wildlife as well as European and American history, which inspires his work. Jack is a dog-lover, food enthusiast, computer nerd, avid drummer and jogger. His first book Mega Meltdown was shortlisted for the AOI World Illustration Awards 2019 'Children's Book Category'.