Brian, I am agreeing with you too, wasn't trying to argue. Just wanted to point out that if you need to learn the basics the SAS guide is probably a better choice.

98.6 degrees is an awesome book. I really liked how he explains the different ways your body loses heat. Conduction, convection, radiation, evaporation, and respiration.If you apply this knowledge to your shelter building and how you dress, you can almost eliminate the need for fire in most situations.