The cover image is a painting entitled 2 and 1, Robot Teaching Calendar (detail) by artist George Widener. Born in 1962 in Cincinnati, Ohio, Mr. Widener currently resides in Asheville, N.C.. He has a diagnosis of Asperger Syndrome. Mr.. Widener’s art work typically revolves around the theme of numbers, calendars and statistics, and is based on his unique abilities in mathematics and calculations and memory for numerical details and historical events. He is a self-taught artist. His artwork has been displayed internationally in both private and public collections. Additional information can be found at http://savantartist.com/.