Sam poured his heart into creating a hyper-realistic charcoal drawing of an eye. At first glance, his work seemed random, like a scattering of charcoal strokes with no clear purpose.

Save guides, add subjects and pick up where you left off with your BBC account. Anything that we draw is made up of shapes. So let's draw some. First, let's hold our pencil in a tripod grip. Point ...

'Why Draw? 500 Years of drawings and watercolors at Bowdoin College' is a show that matches the vastness implied in its name.