Why do people, in the world as a whole or within a given country, live where they do? Why are some places so densely populated and some so empty? In daily life, we take this variation in density as a matter of course, but in many ways it can be quite puzzling.
There are 3 ways of getting knowledge and practical skills on Freedom and Safety:
1) Subscription to materials 2) e-Learning 3) Buying e-books