Giesbrecht (thermophysiologist, U. of Manitoba-Winnipeg) and Wilkerson, a frequent lecturer at wilderness medical conferences and editor of the 1986 first edition, update this guide for readers ranging from medical and rescue personnel to the general public, especially those who hike or camp in cold weather. Some of the information is new, and an effort has been made to make it all more easily accessible for non-professionals. Much of their attention is devoted to immersion in icy water, avoiding and surviving it, and rescuing people from it. Annotation ©2007 Book News, Inc., Portland, OR (booknews.com)