This is a photo tutorial, there are no explanations in writing but the images are quite self explanatory. This could be a great activity to do with kids or in a group. To learn how to transform a t-shirt into yarn in more detail you can go to this site : https://sustainmycrafthabit.com/make-your-own-tshirt-yarn-using-the-whole-shirt/ (pictures) or watch this video : https://www.youtube.com/watch?v=oqyhNDSXEfg&feature=youtu.be