Do you know what materials are best to help regulate your core body tempurature if you could no longer rely on gas and electricity Do you know how to disinfect water to make it potable without boiling it or using iodine How are you going to take care of your family's bathroom waste in a sanitary manner if necessary What could you (safely) eat if you ran out of food How are you going to cook your food when you can't use the stove
I cannot emphasize enough how much I would recommend this book! The author is an expert from experience. He leads back country expiditions and regularly lectures on survival. Unlike most survival experts who haven't tried for a day what they say you could live off of for weeks, he routinely tries eating things just to see how his body reacts to it. His house is designed to be completely off "the grid" and he collects his own drinking water from rain (in Arizona!).
The best thing about this book is that it's entertaining to read as well as informative. He has a straigth forward approach and doesn't pull any punches. He emphasizes the fact that there is no one-size-fits-all survival plan (you are expected to take responsibility for your own familial situation and expected emergencies), but there are several things that everyone will need. This book is pretty thorough and gives you a lot to think about. Can you tell three paragraphs later that I really recommend everyone read this book