Clive Gifford has traveled to more than 70 countries, climbed rocket launch towers, ridden on robots, and flown gliders. He's had more than 200 books published and has received nominations for or won Royal Society, School Library Association, Smithsonian, and TES awards. He won the Blue Peter Book Award for Best Book with Facts 2019 for his title The Colors of History (QEB). Clive lives in Manchester, UK.

Paul Daviz is a Blackburn-born illustrator whose style is characterized by big, bold shapes, sweeping lines, strong colors, hints of texture, and plenty of fun. His influences include Soviet matchbox covers and 1970s cinema advertising. After studying graphic design and working as a storyboard visualizer for TV ads, packaging, and print campaigns, Paul moved to freelance illustration, producing work for numerous and diverse clients, including Chanel 4, The Daily Telegraph, HarperCollins, BMW, Ravensburger, and Royal Mail.