Diane Ewen is a British illustrator, born in the West Midlands. She graduated from the University of Wolverhampton with a B.A. Honours Degree in illustration. Diane likes to create illustrations that are hand-drawn in pencil before painting in watercolour and acrylics prior to embellishing them using Photoshop but she also enjoys working directly on the computer screen creating her designs; constantly developing her style as she progresses. She is both the author and illustrator of The Great Unicorn Rescue.

Diane is also the illustrator of Coming to England, written by Floella Benjamin, as well as There Was a Young Zombie Who Swallowed a Worm, There Was a Young Reindeer Who Swallowed a Present, and many more. She has won the British Book Awards "Book of the Year", the Jericho Prize, and the Queen's Knickers Award.