Marisol posted an awesome list of books about the craft of writing today. Having read (and purchased with intent to read) a number of books on this list, I support Marisol's blog post. One can never spend too much time learning about the craft and industry. Except, well, if you spend all your time learning about writing and publishing, but never spend any time writing.
Of course, even though different books say different things and no single guide can be labeled gospel, one sure fire way to avoid being a noob or a douche bag is through self education.