Learn how to change colours or join a new ball of yarn to your crochet project using three different methods. One of the trickiest things for a new crocheter is working out how to change colours in a project. There are a number of different ways to do this, including simply tying a knot between the new yarn and the current yarn, but there are other ways that will be more hidden in your finished project. You can use these same methods, of course, to add your next ball of yarn if you’re continuing in the same colour. One of my current projects is my Shades of Green Blanket and the yarn changes colours gradually by itself. I don;t need to add a different colour fo yarn but I do need to join the next ball.