While I agree with the reviewer that this is a great book for beginners, I don't agree that "if you have a D70 you shouldn't be an amateur." Hello! Although the D70 can be used to take professional quality photos, Nikon certainly isn't selling this camera primarily to pros. It's aimed at exactly the sort of user who will get the most from this book -- serious photographers who want to get better pictures, but who may not be experienced with digital SLR cameras. It has what you need to learn more about this camera and use its features to improve your work. Although it starts out with the basics, Busch gently moves you into more complex topics. The author doesn't talk down to you, and, unlike the reviewer, doesn't patronize women, older people, or those who know nothing about photography. You don't need to be a professional to use the Nikon D70s -- all you need is this book.