If you didn’t learn knots when you were young, you can still master them quickly. The key is to learn what a given knot should look like when completed, then practice tying it until you can do it with your eyes closed. When studying knots, it helps to know some terms. The ends of a line are referred to as either “working” or “standing.” The working end is free, while the standing end is secured to something. A loop formed in a line is known as a bight.