Zigurd Mednieks is a consultant to leading OEMs, enterprises, and entrepreneurial ventures creating mobile and IoT systems and apps.Previously he was Chief Architect at D2 Technologies, a voice-over-IP (VoIP) technology provider. There he lead engineering and product definition work for products that blend communication and social media in purpose-built embedded systems.He is lead author of the top-selling O'Reilly title Programming Android, which is being updated for a 3rd edition. Zigurd is also the lead author of Enterprise Android, published by Wiley WROX in 2013. Enterprise Android is the first book to focus on cloud API-based Android applications.He is Series Editor of the Addison Wesley Android Deep Dive series. The first book in the series, by Roger Ye, is Embedded Programming with Android, published August 2015. The second book will be Android Concurrency by G. Blake Meike.Zigurd is currently writing Mobile Sensing Technology in the Workplace for APress.Zigurd is a veteran of user interface, telecommunications,, and social media product creation. In 1986, his first book, C programming Techniques for the Macintosh, co-authored with his wife-to-be Terry, was published by Howard W. Sams & Co. and went into several printings.