Chris Raschka is an author and illustrator of many books for children. He is the illustrator of The Hello, Goodbye Window by Norton Juster and the author-illustrator of A Ball for Daisy, both Caldecott Medal winners. He also illustrated four poetry collections by Paul B. Janeczko and is the author-illustrator of The Cosmobiography of Sun Ra. Chris Raschka lives in New York City. Vladimir Radunsky (1954-2018) illustrated many books for children, including On a Beam of Light: A Story of Albert Einstein by Jennifer Berne, and was the author-illustrator of such books as The Mighty Asparagus, You?, and I Love You Dude.