More Frisbees are sold each year than baseballs, basketballs and footballs combined. Yet Frisbees have subtle and clever aerodynamic and gyrodynamic properties which are only recently being documented by wind tunnel and other studies. There are few books which discuss items like boomerangs and Frisbees and this is the first to give detailed technical discussion of these topics. In common with other rotating bodies discussed in this readily accessible book, these subjects are typically not treated in textbooks of aeronautics and the literature is scattered in a variety of places. This book develops the theme of disc-wings and spinning aerospace vehicles in parallel. Since many of the examples are recreational, anyone who enjoys these activities will likely find it profitable and enjoyable.