Rap Payne has focused on mobile development since he started Agile Gadgets, a mobile app development company in 2003. He is a consultant, trainer, and entrepreneur who has written apps, mentored developers, and taught software development classes for Fortune 500 companies like Boeing, Walmart, Coca-Cola, Wells Fargo, Honda,CVS, GE, Chase, HP, Lockheed, Exxon-Mobil, Lowe's, Nike, J.C. Penney, USAA, Walgreen's, and government agencies like the US Air Force, Navy, Army, NASA, Britain's GCHQ, Canada's postal service, and several provincial governments, to name a few.As a professional mentor and trainer, Rap has developed a talent for communicating highly complex ideas in easy-to-understand ways. And as a real-world developer, he understands the need to teach these topics using practical and realistic examples and exercises.