I would recommend also look into some Burne hogarth It's more stylized than a straight anatomy text, but the point is adding a "human" element to your drawings, making them less mechanical and more interesting. I have found using both types of books in tandem is the best way to go.
Ah yeah DEAN that's the guy I was thinking of. I suck at remembering names.
As for the torso-shoulder relationship goes, I get what you're going for but it is literally impossible to jut one shoulder forward without shifting the torso along with it. My dad gave me this book when I was a kid called Dynamic Anatomy and it pretty much changed my life (from a drawing perspective, that is!).
Also, if ever you want to feel better about your own anatomy / proportions, you might want to have a look at this. Hehehe. Enjoy >_<
i think the best is Hogarth's Dynamic Anatomy. i think this because it has a breakdown of anatomical landmarks, using other anatomical landmarks as the reference point. i think anyone should study and memorize these landmarks first.
after that its really down to personal preference.
Anatomy for the Artist is good because it uses photographs.
Anatomy for Artists uses a similar idea behind Hogarth's, except your own body is used more. using yourself as a reference point. this is a newer book. i liked it, it was a very straight forward, 'bare bones' approach. good for beginners.
there are dozens of 'Anatomy for Artists' books. Hogarth's is the classic though. all Hogarth books are great. a lot of younger readers will discard them because they are old and look old. but the information is very strong, and straightforward. the drawings may seem odd, but they are designed in a way to make each individual muscle stand out.