Hello, friend of mine is about the buy a Rolleiflex and get started in photography. He has practically 0 knowledge on the topic and could probably use a help of a few good articles and maybe a good book or two. Most importantly - something that concentrates on the basics and optimally only on analogue photography. He is not going to develop his films for now, so that part is not of relevance. As I have realised that I do not really have a simple book or few articles on the topic, I would kindly ask for your help here. Thank you.