I've had some experience hiking and camping, but most of it was a long time ago, so I find myself having to relearn a lot. As for disaster preparation and survival, I'm practically a beginner. So, as any good student, the first thing I began looking for was the right text book.
I decided to start with the SAS Survival Guide, it was highly recommended on many different survival websites. I picked it up for $8 on Amazon. Short review? I think that's probably the best $8 I've spent in a long time.
This is an extremely cool book. I didn't realize it when I ordered it, but it's pocket sized. Thankfully, it's size doesn't limit it's effectiveness, it's a veritable encyclopedia of survival information. It's designed to be useful in the widest variety of situations, it has a lot of generalizations, so it doesn't replace information for specific environments, but it is overall a very useful guide.
It's got an edible plant guide.
Useful knot tying.
There is really too much in this little book to list it all here. Morse code, signalling, survival strategies, and dozens of other important subjects. It's like a whole season of Survivorman in one book (Les Stroud is the man!).
Let's just say I'm very impressed with this little book. I sealed it in a ziploc bag and it's now a permanent addition to my BOB.