America's favorite bookseller is now on your favorite t-shirt. Founded in 1966 by Bruce Dayton, B. Dalton Bookseller Inc. grew to be the second-largest operator of shopping-mall bookstores in the US. Initially, with stores that featured parquet flooring and wide aisles, B. Dalton targeted middle-class suburban customers. Later the store switched to a mass-market approach, which allowed for a wider range of titles. B. Dalton was also a longtime sponsor of the PBS TV series Reading Rainbow. By January 2010, all but two B. Dalton locations were closed, with the final store closing at the end of February, 2013.