Nel Yomtov is a writer of children's nonfiction books and graphic novels. He specializes in writing about history, country studies, science, and biography.

His graphic novel adaptation, Jason and the Golden Fleece, published by Stone Arch Books/Capstone was a winner of the 2009 Moonbeam Children's Book Award and the 2011 Lighthouse Literature Award.

Nel is an avid American military history buff and has written two additional graphic novels for Capstone, True Stories of World War I and True Stories of the Civil War. He lives in the New York City area.

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.