If you are interested is survivalist strategies then there are definitely some books that you should be reading to prep yourself for any eventuality.
When Technology Fails by Matthew Stein is a must read because during a big disaster there may be no power, no cell phones, no computers or television. This book covers everything from starting to fire, to purifying the tap water to administering medicine and first aid. There is also information about simple chemistry, metalworking and finding food and shelter during a calamity.
When All Hell Break Loose: Stuff You Need When Disaster Strikes is by survivable Expert Corey Lundin. It focuses on your survival mind-set which is about avoiding the weak and unstable and focusing on your own needs. He is the author that maintains that survival in a disaster is ten percent methodology and gear and ninety percent psychology. In this book you will learn extreme survival skills like how to make a composting toilet, catch rodents to eat (if necessary) and how to safely dispose of a corpse.
You can practice survival skills before a disaster strikes. The Self Sufficient Life and How to Live It by John Seymour is the only book that teaches all the skills needed to live independently in harmony with the land harnessing natural forms of energy, raising crops and keeping livestock, preserving foodstuffs, making beer and wine, basketry, carpentry, weaving, and much more. These are the skills needed if you have to go back to live off the land after a total economic or world collapse.
The Crisis Preparedness Handbook: A Comprehensive Guide to Home Storage and Survival is another useful resource. This book by Jack A. Spigarelli is practically an encyclopedia that tells you how to develop a food storage program preserve food, store fuel, alternate energy, emergency evacuation kits, medical and dental, surviving biological, chemical and nuclear terrorism, communications as well as store up firearms and other survival tools.
A classic in this genre is the SAS Survival Handbook Revised Edition: For Any Climate in Any Situation, \Newly updated to reflect the latest in survival knowledge and technology, the internationally known SAS Survival Handbook is covers it all from basic camping to fear management to navigation and strategies for coping with any type of disaster, You also learn what food to eat, what to avoid and how to maximize what food or water that you do have.
These are just a few of the survival guides on the market that can be helpful to you in an emergency. They are among the most popular and best known and based on time-proven advice.