Chris Raschka is the illustrator of The Hello, Goodbye Window , which was awarded the Caldecott Medal. He is also the illustrator of the Caldecott Honor Book Yo! Yes? ; Charlie Parker Played Be Bop ; Mysterious Thelonious ; John Coltrane's Giant Steps ; Can't Sleep ; In the City ; and The Magic Flute . He lives with his wife and son in New York City.