There's no need to send you any link @cantsay  has already done that. Those are same link I'm using recently. But there's way I'm doing it. this might become handy to you too.
Any time I'm reading in those websites,
If there's anything I'm finding hard to understand.
I always make sure to do some research here in the  forum.
To make it more understandable and clearer for me. Because in the forum you will see alot of amazing opinions from different users.
You doing that will give you proper understanding.