Light and Shadow

I was just looking for examples on how to explain light and shadow for my beginner's class this weekend when I happened upon this blog. It is an excellent resource! It covers a lot of the different areas of understanding light and shadow that I had to go over in my drawing classes in art school. 

If you are someone who struggles with highlight and shadow placement, read through this and follow along with the couple of quick exercises. It is well worth the read. 

Understanding Light and Shadow by Monika Zagrobelna