Say someone asks you to design a flyer or a poster that has a "wild west" theme. Where do you start? I might suggest page 186 of
Type Style Finder. This book is a great tool for designers. Not only does it contain more than 850 fonts, each of the forty themed sections have color pallets that corespond.
Check out the evilsigntist books page, for more suggested reading and reviews of books on signage, typography, design and way finding.