Author Glenn O’Brien shares with readers over three decades of style and etiquette in his upcoming book, How To Be a Man: A Guide To Style and Behavior For The Modern Gentleman. From his start at Interview magazine to experience with Barneys New York, Details magazine and GQ, his knowledge is on-point throughout a massive amount of topics. The book also features illustrations from well-known illustrator, Jean-Philippe Delhomme. The Rizzoli-published book will release on April 5th, 2011. A pre-order is available now at Amazon.