I recently picked up Betty Edwards' "Drawing on the Right Side of the Brain" book.  Supposedly, it's been updated recently, to contain her most recent knowledge on mark-making and 'seeing' the drawing in life.<p>I used to be quite a decent pencilist, but after 18 years of not having drawn a lick, and perhaps relating to the drugs that were consumed during my teenage years, I've simply forgotten how to do anything, how to even see the marks that need making, to complete even rudimentary drawings.<p>I'm only a few pages in, but at least on the premise, the referenced book in this works on similar principles.