A microlecture is a short recorded audio or video presentation on a single, tightly defined topic. Microlectures are typically produced by an instructor, who might begin by drafting a rough script that includes an introduction, a list of key points to cover, and a conclusion. Public microlecture sites such as Khan Academy and TED-Ed have made the format a familiar staple of informal learning. These short lectures encourage a self-directed model of learning, allowing students to select lessons to watch and to move through them at their own pace. Microlectures are easy to integrate into the curriculum because they can be used in a variety of ways and are short enough to fit almost anywhere, and they offer an appealing option for mobile learning.