Apr 11, 2014 — In Gulp, which appears at No. 5, Mary Roach follows the digestive system from the mouth to the south.
Mar 14, 2014 — With books like Stiff and Spook, Roach has built a reputation for making unpalatable subjects entertaining. In Gulp, she tackles the human digestive system, from the mouth on down.
Apr 12, 2013 — In Gulp, which debuts at No. 2, Mary Roach takes readers on a tour through the digestive system.