Are you the kind of person that wants to read about how to dress? Do you own Nina Garcia's The Little Black Book of Style or perhaps Victoria Beckham's That Extra Half an Inch: Hair, Heels and Everything in Between?
I've never really seen the appeal of books that teach you how to dress. I think that style is so very personal, and no one can really tell you what will make you look and feel good. Even though I have never read one of these books, I feel that they all tell you to load up on "basics" that supposedly suit everyone - a little black dress; a string of pearls; a pair of black pumps; a well-fitting pair of jeans; a white button-up shirt. But what if you don't look good in black? What if white button-ups make you look like a little girl playing dress up? What if you can't stand pearls? I think everyone's personality is unique and individual, and this should be reflected in your style. I don't think style is something you can learn from a book: it comes out of experimentation and trial and error.
So, my opinion: no one can tell you how to dress. But what do YOU think? Do you own a book on style? Has it helped you? The only thing that I would perhaps consider purchasing, when it comes to fashion-related books, is something with lots of pretty pictures in it, such as Bott's Chanel: Collections and Creations, as a coffee-table book.