White Water Rafting , An Introductory Guide by Cecil Kuhne VGC Very useful manual,covers all aspects Equipment,Technique, Anatomy of a River, Classic whitewater etc. http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=7201616591&rd=1&sspagename=STRK%3AMESE%3AIT&rd=1