Some of the basic macrame knots are Reverse Larkshead Knot, Square Knot, Diagonal Half Hitch knot, and the quintessential Half Knot.    Reverse Larkshead knots are usually used to attach the rope to handles or base rods. Half Knots are used to create variations by mixing up the order or directions. Square knots are basically half knots tied in alternating order. A Diagonal Half Hitch Knot is used to make tight flat weaves for straps and other large, tightly woven items.