Matthew McCullough has been teaching technology in elementary school, college, and corporate classrooms for over 16 years. He is a co-author of Presentation Patterns, a book four years in the making, released by Addison-Wesley in 2012. Matthew has a passion for making technical topics accessible to almost any audience and loves to coach other presenters to make more effective use of the audience's time. Matthew thinks that education is the key to many of the world's problems today and that the root of that transformation begins with more prolific and more effective teachers. Matthew currently helps lead the Training Team at GitHub.