Today sees the release of That Is All, John Hodgman’s third and final compendium of complete world knowledge. This last hilarious entry in his series contains insight and heretofore unknown historical data on such varied topics as wine tasting, sports, and fashion, as well as a subject that is close to his heart but even closer to his nose: mustache etiquette. We asked him to elaborate on this very topic for Vulture through a series of photographic demonstrations. Mustachioed men, all who yearn to be one, and ladies fascinated by the facial-haired arts, read on for an illuminating list of dos and don’ts that will change your lip.
Photo: Melissa Hom