One thing I've learned since I started sewing is that learning never stops. I've been sewing since I was five and the sewing world has changed in many ways over the years. Back in the day there wasn't much of a selection in thread. Most used cotton thread but were always concerned with shrinkage or compatibility with different fabrics; rayon was weak, and some of the others just didn't work well. Then poly thread hit the market. It revolutionized the world of sewing. It was stronger than rayon, fuzz free, and a huge range of color. Today, there are hundreds of threads, too many to list. And the colors are amazing! So what thread do you use for what? The first time I went to Superior Thread I was completely overwhelmed. I had no idea there were so many different types of threads in so many different colors and styles. I'm one of those people that doesn't like to change something if it's working. I've been using the same thread for years. My box was being shaken. I joined Superior University to get some "thread" education. I'm learning to use one thread on the top and a different thread in the bobbin and how to use the different threads for different effects and purposes. Did you know there is an appliqué thread? Instead of using the usual appliqué web to fuse your pieces together you use this thread to basically trace your pieces, trim, and fuse together. No extra bulk, stiffness, or steps. Who knew? Right? And so the education continues.