Before I discovered it last week, I had never heard of Arthur Zaidenberg's 'Anyone Can Draw!', but according to The New York Times, it is a classic.
Published in 1939, it works on the principal that anyone who can write the letters of the alphabet can learn to draw. It all sounds suspiciously simple, but I hope it's true. I'm really looking forward to learning to draw in this fantastic 1930's style, which is very reminiscent of Wyndham Lewis and the Vorticist movement.
Now I just need to persuade someone to pose for me in jodhpurs, hiking boots and a turtle neck, so that I can get it absolutely spot on.