Grant Snider is an orthodontist by day, finding hidden hours to write, draw, and create cartoons and picture books, including What Color is Night? and What Sound is Morning? For 11 years, he rode Bus Number Four to school in Mulvane, Kansas. His favorite things about riding the bus were listening to '90s Top 40 radio, the feeling of going over a big bump on a country dirt road, and occasionally getting to school late when the bus had to wait for a long train to pass. He lives in Wichita, Kansas, with his family.