Mark Moeykens is a full-time mobile developer with over two decades of programming experience. He has created desktop, web and mobile apps in many fields including insurance, banking, transportation, health, and sales. Mark also gives talks on programming and enjoys breaking down complex subjects into simple parts to teach in a practical and useful manner. He also enjoys learning and teaching user interface design and how to improve user experience in apps. In his spare time he creates iOS programming tutorials for his channel on YouTube www.youtube.com/c/MarkMoeykens where he has helped over 50,000 developers in over 140 countries around the world. Mark also uploads mobile UI designs on Twitter as @bigmtnstudio.