Tim Cooke is a graduate of Oxford University. He has worked in children's publishing for over 20 years, and has written or contributed to dozens of books on a wide range of subjects.

Among his publications as writer or editor are numerous sets about military history, particularly the American Revolution, the Civil War, World Wars I and II, and the Vietnam War.

He has also written extensively about general history, both ancient and modern.

Alessandro Valdrighi studied in Florence and graduated with a Bachelor’s degree from prestigious Accademia delle Belle Arti as a set designer. Before going to university, when he was a child, Alessandro started drawing by copying comics and illustrations from books. He believes that’s the main reason he is able to tackle multiple styles and enjoys a challenge each respective style brings. He worked as a cartoonist, illustrator and concept artist (his favourite), with traditional and digital media. Alessandro also won a prize for his comic called Lagrimas en la lluvia, featured as the best comic book publication published in Spain.