ANN ARBOR, MI.- A Catholic convent and college in Los Angeles might seem an unlikely breeding ground for Pop Art and social commentary. However, for nearly three decades, Sister Mary Coritaa Catholic nun, teacher, and inspiration to such luminaries as Buckminster Fuller and Charles Eamesdevoted her life to creating cutting-edge serigraphs. In 1946, a decade after joining the Order of the Immaculate Heart of Mary, Sister Corita began teaching art at Immaculate Heart College and by 1952 she had exhibited her first screenprint. The exhibition at the University of Michigan Museum of Art is comprised of 44 prints that illustrate Sister Coritas signature work beginning in the 1960s, which broke free from the more traditionally religious or Biblical imagery to works that encompassed a wider concept of spirituality. Inspired by media and advertising, she began her