Find Yoga DVDs

So your friend at the office or a neighbor has invited to you to a yoga class. And you do not know the first thing about yoga but everyone seems to be going and is excited about participating in it. So where can you find yoga dvds so you can brush up on it and learn more about it. I have found by turning to the Internet, that you can find almost anything so that is what I do. I found that I could get information for a beginner all the way to an advanced yoga experience. I found there is a tremendous number of varying types of yoga from child to adult and also different reasons for practicing yoga such as slimming different parts of my body. It is all quite interesting.