I bought this book as a photographer searching for different ways to look at image composition. It's excellent, I can open it at any page and find concepts which give me fresh ideas and a broader understanding of image making. Highly recommended for the amount of information it contains.
A text book which is also great resource for the non professional, like me. This makes me wish I could study in this field just for interest. I particularly like the section on breaking the rules knowingly, as opposed to the randomly committing crimes against good design that I practice.