Sister Wendy Beckett is a member of the Notre Dame order, a teaching order of nuns and a celebrity. In 1980 she began the serious study of art, and since has written a number of books on the subject and hosted the popular PBS series "Sister Wendy's Odyssey" and "Sister Wendy's Grand Tour." This week PBS begins airing her newest 10-part series, "Sister Wendy's Story of Painting." There's a companion book (published by DK Publishing)