After blasting Michael Moore's loose-fitting physique as "an example of why the health-care system costs so much in [America]," Mike Huckabee saw his self-penned weight-loss guide surge up the Amazon rankings last week. The former Arkansas governor lost more than 110 pounds after vamping up his diet and exercise regiment, and it seems others are interested in his secrets. Meantime, Obama's best-selling duo, The Audacity of Hope and Dreams of My Father, continues to pull away from the pack, while John McCain, like oh so many other elements of his campaign, stands by as the stronghold of his four-book army lose its once formidable grip.