I'm looking to improve my photographic skills. I consider myself an intermediate photographer. I'm familiar with most of the functions on my DSLR and I'm comfortable shooting in manual mode, having spent a few years as a teenager shooting photographs with a manual.
Does anyone have any course (online preferably) or book that they can recommend? I would like stuff dealing with composition (more advanced stuff than the usual rule of 1/3), lighting, and generally more advanced aspects of photography that I might not be aware off.
p.s. I'm know that it's impossible to get a grip of what I am or am not aware off, so I'll round this off by asking do you have any good books or courses that you can recommend?