A variety of how to books could also come in handy. A few that I have in my collection are Back to Basics, Stocking Up lll, The manual Of Practical Homesteading, Where there is no Doctor and, Where there is No Dentist. A good survival handbook should be part of your library also. I would also suggest anytime you have the opportunity to learn a new skill do so. The time may come when you can not get someone to repair your pluming, fix a roof, work on your vehicle etc.
By faith Noah,being warned of God of things not seen as yet, moved with fear,prepared an ark to the saving of his house;by the which he condemned the world,and became heir of the righteousness which is by faith Heb.11:7