Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.Skiing is a group of sports using skis as equipment for traveling over snow. Skis are used in conjunction with boots that connect to the ski with use of a binding. Skiing can be grouped into two general categories. Nordic skiing, the older of the two disciplines, originated in Scandinavia and uses free-heel bindings that attach at the toes of the skier''s boots but not at the heels. Types of nordic skiing include cross-country, ski jumping and Telemark. Alpine (often called "downhill") skiing, which began in the European Alps, uses fixed-heel bindings that attach at both the toe and the heel.