Chiaroscuro

I  recently bought a book called "The Artist's Complete Guide to Drawing the Head" by William Maughan.  It describes a method of drawing called chiaroscuro where form is established by shadows and light rather than lines.  This is my first attempt at chiaroscuro, I used faber castell pastel pencil in "Indian Red" with just a smidge of "white" pencil here and there for highlights.  I'm quite happy with the results and I will definitely be using this method of drawing again I think.