The skill of avalanche prediction is both an art and a science. This guide, aimed at mountaineers, skiers, climbers, snowboarders, snowshoers, walkers and all who love winter and snow sports, can help you learn that skill. The guide draws on the expertise of a wide range of professionals involved in mountain activities, as well as first-hand accounts of avalanche scenes from witnesses and survivors, to help you understand and predict avalanches, evaluate the risks and reduce the dangers. This practical, pocket-sized guide is for use on the mountain and during planning. The guide includes a NivoTest designed to help quantify the risks from avalanches.