Video and slides synchronized, mp3 and slide download available at URL http://bit.ly/YBdB4h. Matthew McCullough examines the last four years of communication culture at GitHub, starting their internal mobile and web apps, use of pull requests, and emoji. Filmed at qconnewyork.com. Matthew McCullough works for GitHub, Inc. and trains audiences around the world on the most effective use of the Git version control system and GitHub collaboration platform. He writes books and records videos for O'Reilly and Manning on the topics of delivering technical presentations, the use of modern build and continuous integration tools, and version control industry best practices.