What happens when two high school teachers get fed up with their soaring grocery bills and decide to try to feed themselves on one dollar each, per day? Authors Kerri Leonard and Christopher Greenslate describe how they did it—and also include sections about eating on a little more than $4 a day, as well as on the actual costs of eating a healthy diet. On a Dollar a Day also includes fascinating facts about the way our food gets to the table and the hidden costs—both personal and financial—along the way: