The Five points of Calvinism are really the Reformed and Presbyterian church's response to the errors of the followers of Jacob Arminius. While they are not the sum total of the Christian or Reformed Faith, they do touch on a number of fairly hard doctrines that are appropriate to consider the study.
This first point about sin and the affect of the Fall on mankind is pretty well essential to understanding working and flow of God's grace to us.
We will look at:
1. The Meaning of Depravity 2. The Universality of Depravity 3. The Proof of this Depravity