Muhammed     Ali may seem an unlikely likeness for the author of Lydia Cassatt Reading     the Morning Paper, a novel about Impressionist painter Mary Cassatt's dying     sister that has been lauded for its sensitivity and delicacy. But Daniel Simon,     publisher of Seven Stories Press, compares Harriet Scott Chessman to the heavyweight     champion, explaining, "In her subtle way, Harriet hits you at several different     angles ...