NEW YORK (AP) — Oscar-winning actor and book club impresario Reese Witherspoon is teaming up with her publisher, Hachette Book Group, on a literacy campaign. Starting this fall, new audio books from Nathan Harris, Patricia Cornwell and other Hachette fiction authors will include a message from Witherspoon urging parents to read to their children at least 10 minutes a day, visit libraries and bookstores and perhaps even form a book club. Witherspoon's own club has helped boost sales for such choices as R.F.