<I>Cathy</i> is an American icon. She represents Everywoman for millions of women around the world. The noseless character has earned a place in the pantheon of America's most beloved cartoon characters. Of course, Cathy is oblivious to all that. Her relationship with Irving and her new diet are distracting her.<P>Author Cathy Guisewite has tapped into he zeitgeist of a generation. This installment of America's most beloved calorie-counting, workaholic, sweetheart, <I>Revelations From a 45-Pound Purse</i> is not to be missed.