What The Duck is a comic strip that every photographer (and non-photographer) should read.

Don was born in Bountiful, Utah. He studied art and illustration at Utah State University, the Illustration Academy, and most recently as Syracuse University. He is an illustrator and educator and teaches illustration at the College for Creative Studies in Detroit, Michigan. He has just illustrated his first book, You Can't Go to School Naked. For more of his work, visit www.drawger.com/donkilpatrick.

Source: An Illustrated Life

Here's a free digital art book I found online. You can download it at scribd.com.