Books
When was "Bro on the Go" released?
How I Met Your Mother
 "The Bro Code", cited by Barney many times throughout the series, is a set of written rules for bros to follow, and has been published as a tie-in novel, an audiobook, an iPhone Application and an Android Application. Barney alleges it was written by Barnabus Stinson, a contemporary of George Washington and Benjamin Franklin. Many of the rules listed in this book also appear in the show's closing vanity cards in syndication, similar to what Chuck Lorre uses to end episodes of several of his shows, "Dharma and Greg", "The Big Bang Theory", "Two and a Half Men", and "Mike and Molly".  "Bro on the Go", a companion to "The Bro Code", released in 2009.  "Bro Code for Parents: What to Expect When You're Awesome", released in 2012.  "The Playbook," based on the fifth season episode of the same name, by Barney Stinson and Matt Kuhn.  "How I Met Your Mother and Philosophy", released in 2013.