If I'm not mistaken the sew-all thread is polyester and it's meant for regular sewing. You could probably use it for embroidery but actual embroidery thread is so much nicer. It has a lovely sheen to it that makes the embroidery really stand out. There are online sites that sell embroidery thread sets, and Joann's may even have some. I don't know for sure as I live in Canada and we don't have Joann's here.