Sorg describes a movement that's occurring in the state, the Little Free Library, a nationwide movement that began in Wisconsin in 2009. The little wooden boxes on poles may look like birdhouses, but they're not. They are filled with small book collections, about two dozen or so, and neighbors and visitors just take a book and leave a book. Sorg explores the Triangle Area to find how widespread the movement is in the area. Worldwide there are about 12,000 boxes, with more being built each day.