A respected guide covering, in detail, route planning for trekkers, national parks, health, where to go and what to do in Nepal. With an overview of the geography, history, religion and culture of the region. Regularly revised, the guide has been around since 1976. Invaluable for its route descriptions, the book also includes good information on cross-cultural understanding. With 16 so-so maps, elevation profiles of major treks and 76 black-and-white photographs.  (NPL10, $29.95)