The Menu structure follows a Nikon standard so picking up various models, the same terms and locations are used. Shooting is really pretty logical, setting parameters that impact recording of the coming shots, the setting that impact the next shots WB, PC, Color Space, Multiple Exposure mode etc, which are embedded in the resulting image file. Setup is for functions that set up the camera generally such as Time and Date, LCD brightness, Cleaning lockup, functions that do not impact recording if images as much as effect the camera in general regardless of playback or recording. These are used less often and could have been called "Configuration" to related more to peoples computer experience.
I read the manual cover to cover in the parking lot of the camera store where I bought my D90, my first Nikon and first DSLR 4 years ago. My camera experience was film. I learned the terms and started shooting before I got home. A few years later I added the D7000 and found that the manual was opened only a few time because the menu system was so consistent with the D90's menu. Later, last May, I added the D800 to the collection and went two days later to Scotland for a photo-holiday and the manual is still wrapped in plastic, never opened, since it so logically follows the Nikon standard. Personally, I think the menu system Nikon standardized on is good and one of the features that generates positive comments about ergonomics that Nikon receives from reviewers and users alike. Stan St Petersburg Russia