The biggest attraction for me would be to have an included CD/DVD with exterior and interior scenes, but simpler (ie simple boxes?).
These could range through various times of day and include in the text of the book complete explanations of lighting, cameras, environment and render settings (maybe the same scene could have optional settings for preview and final renders) for each of these scenes.
I'd want a book that I could use on a daily basis with everything easy to find and graphically well designed. Like a handbook, I'd love that!