Wallpaper* Magazine has, what looks to be, a splendid guide book series. The Wallpaper* City Guides are available in print or as an app. In their own words, "Wallpaper* City Guides present a tightly edited, discreetly packaged list of the best a location has to offer the design conscious traveller." I love the idea of a guide book geared toward the design savvy. There are over 80 guides currently available via Phaidon.