I enjoy (and learn from) What Not to Wear, although it's probably not the most efficient way to learn about clothes, make-up, hair styles, etc. It's often pretty amusing though. Also good is the original BBC version. There appear to be some resources on both of those websites, and a number of related books, but I haven't used/read any of them.

ETA: One of the things the show taught me is that, especially if you're not that experienced with fashion, you often have to try on a lot of clothes to find something flattering. Unfortunately that can be both frustrating and time-consuming; but to some extent knowing some of the "rules" that the show teaches about what's flattering (and the different rules for different body types) can at least help that process go a little more smoothly.

I've been looking around for a while, and I haven't found the book that I wish existed -- guides to style for women are more often about "expressing yourself" than systematic "this looks good, this looks bad" manuals. The closest I've found is What Not To Wear. -- there's also a matching book.

Of the fashion magazines, Lucky is the most practical -- the clothes are almost affordable and there are sections that detail how to put together a pretty outfit.

Still trying to figure out clothes, though. "Flattering" is hard to pin down. More advice would be welcome.