1. Organization- The book does a great job of pointing out basic photography techniques and explaining basic terminology before going deeper. Thus, it's possible for beginning photographers to benefit just as much as the more advanced photographer.
2. Diagrams- Several photography books try to explain how to take good pictures, but don't show you how. This book has several diagrams that explain concepts ranging from the mechanics of a lens to the correct aperture/ISO combinations.
3. Example photos- When learning a new technique, Digital Exposure Handbook
4. Camera Independent- Too many photography books try to tell you how to use your specific camera, while simultaneously teaching you how to use two other brands of cameras. While this is an attempt to be helpful, it often confuses the reader. The Digital Exposure Handbook tells you to "adjust the ISO", but does not go into detail on how to do that with nine different types of cameras. So, for the beginning photographer, you might want to have your camera's manual handy while reading.
5. Image data- Every image in the book tells what camera/lens the photo was taken with, along with the specific camera settings that were used. This is especially helpful for the beginning photographer. I was, in fact, able to go into the field for a shoot, set my settings to mirror what Ross Hoddinott used, and take a nearly identical photo. While this isn't useful in the long run, as it discourages actually learning about the camera's settings, it does allow the reader to get into the field right away and begin experimenting with their camera's settings.
All in all, Digital Exposure Handbook