So, danny elfboy you are also danny_sequel

Anyway, I do not believe there is any one magic book in the world that will make everything just click. Besides that, you are the one who initially said :
Maybe it would be interesting to compare the difference between harmony books from different countries too (not to mention that from my experience there's no difference between harmony textbooks; they say the same things and just differe a little in the way they say them).
I have just counted my FIRST YEAR theory books, meaning that I have a lot more in advanced theory, too, and I have 10, yes, 10

(I collected them from various places

). I am quite sure that each individual author felt as though they were filling some gap in the world by publishing their own version of the same material, and maybe they indeed were for SOME people, though I am sure not for all.
My basic thought is that if I cannot gather the info that I need from any one, or combination of these 10 books, I better just give up or else I am just simply not trying hard enough.
So yes, my previous suggestion still stands as is; that we pick a topic, however basic, and concentrate on that, accompanied by music for our study. I think we should start with something very simple, like hymns or chorales (as I have previously stated) for the topic of voice leading. Does it really matter if we skip around in the books a little ? I don't think so.
If I wanted to take an actual course and go through a book from start to finish, I would find a teacher that I liked and then sign up for a class and pay them to teach me. But, since we don't have that kind of organization here (unless we start an actual class

), I recommend that we stop trying to make everybody who is interested in the
SUBJECT, buy the same exact book (especially since some of us already have
plenty) and that instead we use the positive and unique opportunity that we have by sharing this online community, and pull from several DIFFERENT resources. If somebody feels like they have a special perspective to offer the group, either becuase of their own discovery or because the book they have presents something in a great way, all the better !! That person has something to contribute and feel good about then.
The solidarity of our project will be on the precise subject and in the music we choose to analyze. We use the music and our individual study in order to find the practicality of the teachings.
So, I suggest we pick a piece and a subject (like voice leading) and begin work. I also suggest, again, that we include composition as part of our individual study. It's much more useable if we actually put the concepts into action ourselves through composition.