There are a few things to learn: getting and using a software wallet, learning how to send and receive money, learning how to buy bitcoin from a person or an exchange.
<b>Preparation</b>
Before getting started, you will need to get yourself a wallet. You can do this easily enough by registering with one of the exchanges which will host wallet for you. And, although I think you are going to want to have one or more exchange wallets eventually, you should start with one on your own computer both to get a better feel for bitcoin and because the exchanges are still experimental themselves.
When we get to that stage of the discussion, I will be advising that you get in the habit of moving your money and coins off the exchanges or diversifying across exchanges to keep your money safe.
What is a wallet?
It is a way to store your bitcoins. Specifically, it is software that has been designed to store bitcoin. It can be run on your desktop computer, laptop, mobile device (except, as yet