great introduction to fabrics, as a warm up for more detailed knowledge.

I received a sewing machine as a Christmas gift and I am starting to learn how to use it and this class helped me a lot since I don't know anything about anything, the other day I went to a fabric store and I couldn't buy anything because I didn't know what choose, I didn't know what I needed.

Not enough information would like to know what the sewing difference is between the fabric.