Author of a best-selling mobile app book using Xamarin, Dan Hermes is a Xamarin MVP, Microsoft Regional Director and MVP, IBM Champion, and founder of Lexicon Systems. Mr. Hermes helps developers create great mobile apps and, leveraging IoT and AI, helps businesses develop a winning mobile strategy. Dan’s firm has advised on dozens of successful business apps in healthcare, retail, government, education, finance, transportation, biotech, and others. Xamarin mobile projects include a cross-platform app for Thermo Fisher Scientific which won a W3, a Davey award, and was a finalist for a Xammy award, as well as a medical app used by over forty thousand surgeons. Dan develops Azure and Xamarin course curriculum for Microsoft and edX. Recent speaking engagements include IBM InterConnect, Xamarin Dev Days, Microsoft Azure Day, and Microsoft Ignite. He speaks at conferences, universities, and user groups.