Allan Peterkins & Nick Burns have spent the better part of their recent lives documenting the phenomenon of the beard, and for all their good work, we now have The Bearded Gentleman: The Style Guide to Shaving Face, a comprehensive guide to facial hair for men, published by Arsenal Pulp Press. Covering all sorts of facial accoutrements, from the most classic of handlebar mustache to the most minimal of Van Dyck goatees, the book features every bit of advice you need to ensure you look more like Jake Gyllenhaal than Zach Galifianakis if you should choose to go razor-less. Available now through Amazon and various other retailers.