Galia Bernstein was born and raised in Israel. She worked as the art director of two Israeli children's magazines before moving to New York City to study illustration at the Parsons School of Design. Galia currently works as a freelance illustrator and is the author-illustrator of Leyla and I Am a Cat, which received three starred reviews. She lives in Brooklyn, New York.

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.