- Earth - protection from the harsh elements using trees, leaves, dirt, grass, and vines to build shelter
- Water - effectively cool off when overheated and avoid dehydration
- Fire - properly use fire to warm the body and to purify water by boiling it
- Wind - harness the power of wind to ventilate shelters, smoke meat and help build fires
- Void - apply knowledge and creativity while developing a survival plan
Isler has over 20 years of experience as a martial artist, Special Forces soldier and security expert. With over 135 full-color photos and 60 illustrations detailing these time-tested methods, this book offers insights that are extremely practical. The foreword by Ninjutsu master Stephen K. Hayes masterfully connects the past to the present by providing unique and valuable insights for surviving mentally in the outdoors.