There are no rules for good photographs, there are only good photographs.
To photograph truthfully and effectively is to see beneath the surfaces and record the qualities of nature and humanity which live or are latent in all things.
These people live again in print as intensely as when their images were captured on old dry plates of sixty years ago... I am walking in their alleys, standing in their rooms and sheds and workshops, looking in and out of their windows. Any they in turn seem to be aware of me.
When I'm ready to make a photograph, I think I quite obviously see in my minds eye something that is not literally there in the true meaning of the word. I'm interested in something which is built up from within, rather than just extracted from without.