Input (grade 11): There have been several instructional books on table football, including The Complete Book of Foosball, and Zen and the Art of Foosball.
Output (grade 9): Table football, also known as foosball or table soccer, is a table-top game and sport that is loosely based on association football. The name "foosball" comes from the German word for football, "fussball" or "fuÃ ball".