In my sartorial collection I currently have: The Handbook of Style by Esquire; Details- Men's Style Manual by Daniel Peres; Style and The Man by Alan Flusser; Gentleman- A Timeless Fashion by Bernhard Roetzel; Dressing The Man- Mastering theArt of Permanent Fashion by Alan Flusser; and last but not least: The Elegant Man by Riccardo Villarosa & Giuliano Angeli. All of these have very applicable guidelines for the stylish Gentleman. Check them out, you won't be disappointed.