About the Author

CRAIG GRUMMITT is an interactive developer with more than 20 years of experience, from museum touchscreens to games, and from online learning to mobile apps. He has multiple successful apps in the iOS and Android App Stores under the moniker Interactive Coconut. He has a passion for mobile development and finding simple and concise ways to explain complex topics.

@font-face { font-family: 'livebook'; src:url('https://d19npu3b8zepp3.cloudfront.net/assets/fonts/livebook.eot?1.9.0'); src:url('https://d19npu3b8zepp3.cloudfront.net/assets/fonts/livebook.eot?1.9.0') format('embedded-opentype'), url('https://d19npu3b8zepp3.cloudfront.net/assets/fonts/livebook.woff?1.9.0') format('woff'), url('https://d19npu3b8zepp3.cloudfront.net/assets/fonts/livebook.ttf?1.9.0') format('truetype'), url('https://d19npu3b8zepp3.cloudfront.net/assets/fonts/livebook.svg?1.9.0') format('svg'); font-weight: normal; font-style: normal; }