A good crafts person learns as much as possible about their tools and materials as they can. For weavers this means understanding the inherent characteristics of the fibres they work with and how preparation for, and then spinning them, will affect those characteristics.
One of the things covered in the Olds curriculum is an introduction to the materials being used, but if you can’t take a class where this is covered you can find out by doing a search on the Internet, taking my webinar via Interweave, called A Good Yarn, or asking your library for books on fabric science. Here are just three such books I have in my personal library. And why I am registered for two spinning workshops next month. You can never know too much about your materials, imho…