The document defines e-learning as any program of learning, training, or education that uses electronic devices and applications to create, manage, and transfer knowledge. It discusses two main types of e-learning: synchronous learning which allows real-time interaction with an instructor online, and asynchronous learning which allows participants to complete training at their own pace without live interaction. The document also lists several benefits of e-learning such as cost savings, global access, consistent content, and easy updating.