What you need is a guide that explains the purpose and function of the D750¿s basic controls, howyou should use them, and why. Ideally, there should be information about file formats, resolution,aperture/priority exposure, and special autofocus modes, but you¿d prefer to read about those topicsonly after you¿ve had the chance to go out and take a few hundred great pictures with your newcamera. Why isn¿t there a book that summarizes the most important information in its first two orthree chapters, with lots of illustrations showing what your results will look like when you use thissetting or that? This is that book.