I've looked through the archives (though probably not as thoroughly as I ought), and I've found some good information in several threads, but has anybody put together a single, unified FAQ talking about different brands, styles, vintages, and such? I'm seeing all kinds of terms, styles, brands, and such, but I have no idea what I'm really looking at. Can somebody point me to a good primer on fedoras in particular, and men's hats in general?