This popular, indispensable book from the American Alpine Club Press offers guidelines for warning symptoms of high altitude sickness. Useful for trekkers, skiers, and climbers, this guide defines acute mountain sickness and divides it into three categories: mild, moderate, and severe. In layman's terms, Dr. Hackett provides information on evaluation and treatment of peripheral edema, cerebral edema, high altitude pulmonary edema, and high altitude retinal hemorrhage. This handy, pocket-sized guide is one that anyone traveling to high altitudes should have in their pack.