The Joy of Economics (Robert J. Stonebraker)

Robert J. Stonebraker of Winthrop University has written this text (freely reproducible for non-profit uses). It can be used for a one semester micro/macro principles course. It is unusual for its use of non-traditional examples for such a text (however, many come from the economics literature).

http://faculty.winthrop.edu/stonebrakerr/book.htm