Craig James Johnston has been involved with technology since his high school days at Glenwood High in Durban, South Africa, when his school was given some Apple ][ Europluses. From that moment, technology captivated him, and he has owned, supported, evangelized, and written about it. Craig has been involved in designing and supporting large-scale enterprise networks with integrated email and directory services since 1989. He has held many different IT-related positions in his career, ranging from sales support engineer to mobile architect for a 40,000-smartphone infrastructure at a large bank. Eric Butow began writing books in 2000 when he wrote Master Visually Windows 2000 Server. Since then, Eric has authored or coauthored 26 other books. Those books include Addison-Wesley's User Interface Design for Mere Mortals, Amacom's How to Succeed in Business Using LinkedIn, Wiley Publishing's Droid Companion, Wiley Publishing's Google Glass For Dummies, Que Publishing's Blogging to Drive Business, Second Edition, and Que Publishing's My Samsung Galaxy Tab S2.