Author of ...

Android Application Development For Dummies (v1 & v2) Android Tablet Application Development for Dummies Contributor to Android Development Tools (with Mike Wolfson)

Learn Android by watching my screencasts at Caster.IO

... and currently helping re-shape commerce at GetPoynt.com

Developer of two top 100 apps in Google Play

Groupon Android App

MyFitnessPal Android Ap (#1 Health and Fitness App in Google Play)

Other

Advisor for Picmonic

Creator of Travel WODs (Android and iOS app)

Partner in Qonqr.com & AgileMedicine

See my public profile here: http://careers.stackoverflow.com/donnfelker