One week into 2013, it looks as if people are sticking to their New Year's resolutions, as four of the top 10 print books selling at Amazon were dieting books. The Plan by Lyn-Genet Recitas (#2), Shred by Ian K. Smith (#4), Wheat Belly Cookbook by William Davis (#9), and Fat Chance by Robert H. Lustig, all made the top of the chart, though Robert Jordan's A Memory of Light was #1 overall on its publication day.