Dr. Chris McNab is an experienced specialist in wilderness and urban survival techniques. He has published over 20 books including: "How to Survive Anything, Anywhere -- "an encyclopedia of military and civilian survival techniques for all environments -- "Special Forces Endurance Techniques," "First Aid Survival Manual," and "The Handbook of Urban Survival," In his home country of Wales, UK, Chris provides instruction on wilderness hunting techniques and he is also an experienced martial arts instructor. Martin J. Dougherty is a Freelance writer and editor specializing in military and defence topics. His published works deal with subjects ranging from teh history of small arms to naval warfare and private security. He has written or contributed to "Small Arms," "Battles of the Medieval World," "The World's Worst Weapons," and "Battles of the Ancient World."