The Ashley Book of Knots (1944)
Know knots or tie lots!<p>Knowing a few different knots for a variety of situations comes in handy. The right knot holds properly and can usually be undone when needed without having to cut it out.<p>If you're starting out then the square knot, two half hitches, taught line hitch, clove hitch, and bowline cover most use cases. And, yes, those are among the basic ones taught to Scouts.