+1 on Michael Freeman's books.
The meat of the matter you may want to study is how photographs are taken, critiqued and analyzed. This wholistic view is discussed by David Hurn & Bill Jay's 2 books: 1) On Being a Photographer, and 2) On looking at Photographs.
A good thing to note on these books is that it's not presented in your typical lecture-type format - what you actually read are them talking to each other on different topics per chapter, very much like an interview-type format with the 2 authors interviewing each other. I found the conversational nature of the presentation makes the book an easier reading considering the subject itself is heavy and typically hard to understand.