I am just starting to look into what I need to do, and I have few questions.

What is a "hardened home"?
Are you saying its better to have a home in the city, than in a rural setting?
Is that what "bugging out" means, to go to a small house outside of town?
And are you saying thats bad?
Is there a book, or a few books I could read to get started?
I'm looking for an incremental method to purchase what I need, supplies and training, over time, due to cash constraints.
Any help would be great.