This is a fantastic book for beginning photographers! This book, written by Bryan Peterson, was highly recommended to me when I first purchased my digital SLR camera, and I am so glad that I bought it!
Understanding Exposure helps to explain how to obtain correct exposure on your camera- whether it be realistic exposure, or "creative" exposure. The author talks about the relationship between focal length, ISO speed, and shutter speed, and how they all come together to form the exposure of a photograph.
The book is written in very easy to understand terms, which I really appreciated- I get lost easily when the discussion turns too technical when it comes to photography, but I had no problems reading Understanding Exposure. The book puts analogies and metaphors in so a photographer of any level can learn something from it.
I find myself constantly referring back to this book for ideas, and to help learn my camera better- there are multiple photos that demonstrate each technique discussed in the book, which is really something I enjoy. In my opinion, its one thing to talk about how to create a shallow depth of field, but I learn so much more if I can SEE how different camera settings change the depth of field.
The photos are beautiful, and the author carefully describes how each were taken, without sounding like he is superior to the reader. I highly recommend this book to anyone who enjoys photography- it is a wonderful reference to have!