A good position for cutting a long straight line towards oneself on the block is shown below (fig. 8). The left hand is on its side, and the middle finger is hooked round and pulls the knife while the right hand guides it.
In all cases the middle finger of the left hand pushes or steadies the knife, or acts as a fulcrum.
Fig. 7.—Position of the hands in using the knife.
A beginner with the knife usually applies too much pressure or is apt to put the left finger at a point too high up on the blade, where it loses its control. The finger should be as close down to the wood as possible, where its control is most effective. A small piece of india-rubber tubing round the knife blade helps to protect the finger.
Fig. 8.—Another position of the hands in using the knife.
With practice the knife soon becomes an easy and a very precise tool, capable of great expressiveness in drawing. Bear in mind that both sides of a line are drawn by the knife. The special power of developing the expressive form of line on both sides is a resource tending to great development of drawing in designs for wood-block prints. The line may be of varying form, changing from silhouette to pure line as may best serve to express the design. It should never be a mere diagram.