There is a wonderful documentary on Lynda.com now about Ed Emberly, one of my favorite illustrators whose books I used to pore over as a young artist.
If you are not a subscriber to Lynda, you can still watch the intro and the first of the three chapters: Getting to know Ed. It's an enlightening tour of his studio where he talks about his education and about using crowquill pens, brushes and woodcut. He also talks about striking out on his own as a children's illustrator and author.
In the other two chapters he talks about his style and the genesis of his "drawing alphabet" books for kids. You also get a peek at Ed talking to school kids, meet his family and see him collaborate on a book with his daughter. Ed Emberly also gives his entertaining take on adapting to changing technology and how it's affecting the market in publishing.