Scarry was closely associated with mass-market children's publisher Ole Risom. They worked together on dozens of books, including "I Am a Bunny", which Risom wrote and Scarry illustrated. First published in 1963, it is still in print." Risom and Walter Retan also co-wrote the illustrated biography, "The Busy, Busy World of Richard Scarry". In the 1980s and 1990s, many of Scarry's "Best Ever" books were produced as animated videos and aired at times during TLC's Ready Set Learn block. The Busytown books were also adapted into an animated series, "The Busy World of Richard Scarry", which was produced by CINAR Animation and Paramount Television and ran on Showtime from 1993 to 1997 and later reran in the late 1990s on Nickelodeon and Noggin. A further animated series, "Busytown Mysteries", was commissioned by CBC Television from the Cookie Jar Group (the successor to CINAR) in 2007, and airs on the Kids' CBC Block morning program.