The New York Times declared 2012 to be "The Year of the MOOC" as millions of students enrolled in massive open online courses (known as MOOCs), millions of investment dollars flowed to the companies making them, and the media declared MOOCs to be earth-shaking game-changers in higher education. During the inevitable backlash that followed, critics highlighted MOOCs' high dropout rate, the low chance of earning back initial investments, and the potential for any earth-shaking game change to make things worse instead of better. In this volume in the Essential Knowledge series, Jonathan Haber offers an account of MOOCs that avoids both hype and doomsaying. Instead, he provides an engaging, straightforward explanation of a rare phenomenon: an e...