You’ve already drawn and redrawn your picture and you’ve worked out all the problems. Now it’s time to finished it leaving all the ghost lines and eraser smudges in your sketchbook. Transfer your drawing to you final working surface to assure a clean preliminary drawing to paint or ink on. Below is an easy 4 step process to transfer your drawing.
Cover back of your drawing with a dark layer of graphite.
Flip over, so your drawing is right side up and place it on the surface to transfer to.
Trace lines on you original drawing with a ballpoint pen.
The pressure of the pen will transfer the lines you draw onto the surface below. Leaving a clean line drawing to then ink, paint or anything else.