To draw the head from any angle you must first understand its basic structure. Look past all the distracting details and visualize the underlying forms. This ability to simplify can be applied to the features of the face, but when starting the drawing you could look even further. Ignore even the features and simplify to the most basic form of the head. I use a method taught by Andrew Loomis in his book, “Drawing the Head & Hands”. The head deconstructed into its basic forms, is a sphere as the cranium and a block as the jaw and cheek bones. .