Corey loves to code. He also loves to speak. This is an opportunity to mix these two passions. Best known for his journeyman tour and co-founding the coderetreat community, Corey continues to help developers discover ways to continue on the path of awesome development. Lately, he has been focused on effective, maintainable design through a better understanding of the fundamentals of writing code. He is the author of the book, Understanding the 4 Rules of Simple Design, and an upcoming book on The Lambda Calculus.