Many components go into a successful mobile learning experience. Together, they can be seen as a “mobile learning ecosystem.” Chad Udell and Gary Woodill explain in this excerpt from Mastering Mobile Learning that learning designers and developers have many choices for how to facilitate learning using mobile technologies. The specific techniques that you choose to implement in your mobile learning design will depend on your learning theories, your experience at training or teaching, and the characteristics and needs of the learners you are trying to train.