Vitaly Friedman loves beautiful content and does not give up easily. From Minsk in Belarus, he studied computer science and mathematics in Germany, discovered the passage a passion for typography, writing and design. After working as a freelance designer and developer for 6 years, he co-founded Smashing Magazine, a leading online magazine dedicated to design and web development. Vitaly is the author, co-author and editor of all Smashing books. He currently works as editor-in-chief of Smashing Magazine in the lovely city of Vilnius, Lithuania.
John has been developing apps & games for iOS since the early days of the SDK. These days, he's working as a lead iOS developer at Spotify - where he is both writing a lot of code - but also leading the development of the company's component-driven UI framework. John is also a huge fan of Swift, doing a lot of open source work (for example the Unbox & Wrap JSON tools) and making games using it.
Wei-Meng Lee is a technologist and founder of Developer Learning Solutions, a technology company specializing in hands-on training on the latest mobile technologies. Wei-Meng has many years of training experiences and his training courses place special emphasis on the learning-by-doing approach. His hands-on approach to learning programming makes understanding the subject much easier than reading books, tutorials, and documentations. His name regularly appears in online and print publications such as DevX.com, MobiForge.com, and CoDe Magazine.