Andrew Stellman is a developer, architect, speaker, Agile coach, project manager, world-recognized expert in transforming and improving software organizations, and expert in building better software. He is an author and international speaker with top-selling books in software development and project management. Andrew is focused on helping people learn to code, improve their projects, and enhance their teams. Over the past 30 years, he's architected and built large-scale software systems, managed international software teams, and consulted for companies, schools, and non-profit organizations. He has been referred to as "one of the industry's best and brightest" (Dr. Dobb's Journal, 2006). He's had the privilege of working with some pretty amazing teams during that time, and likes to think that he's learned a few things from them. Andrew's books (coauthored with Jennifer Greene) include Head First C#, Learning Agile, Head First Agile, Beautiful Teams, Head First PMP, and Applied Software Project Management. You can contact Andrew at https://www.stellman-greene.com, and see his O'Reilly projects here.