This presentation provides an overview of MOOCs (Massive Open Online Courses). It defines MOOCs as online courses that provide unlimited and open access to students worldwide. The history section outlines that the first MOOC emerged in 2008 through a course on connectivism that had over 2,000 registered students. MOOCs work by having curriculum and video lectures and require students to participate in online discussions, quizzes and activities. They are characterized by being free, unlimited and allowing open access to learning content. The presentation also describes the two main types of MOOCs and outlines the presenter's fields of interest within biology for MOOC study.