This document discusses mobile learning (mLearning) by addressing who participates, where it occurs, when it's useful, what types of content and activities are involved, why it's effective, and how to implement it. It notes that mLearning audiences include those with busy schedules who want just-in-time, short learning segments on mobile devices. Content includes courses, job aids and microlearning to support formal learning and job performance. mLearning provides learning opportunities whenever and wherever users have spare moments. The document provides additional resources on mLearning best practices and trends.