Required Texts The following books are available through many retail stores or through AAI by credit card (Visa/MC) or check. Cost includes shipping. For Level I courses, recommended text is Staying Alive in Avalanche Terrain by Bruce Tremper, The Mountaineers Press, 2001 - $l8.00 For Level II or III courses, the required text is Snow, Weather, and Avalanches: Observational Guidelines for Avalanche Programs in the United States (SWAG) ($20), as well as a field notebook. Snow Pit Technogies' Avalanche and Snow Profile Field Notebook is available from AAI for $22.