Take the world's best courses online for free! Choose courses from 33 universities in 20 different topics ranging from science, business, music and film, and the social sciences. Course information displays start date, length of class, and the source offering the course. View a description/biography of the course instructor, a video explanation of each course, and information on the course format at the homepage for each class. Most courses offer a certificate of completion for successful completion of course requirements.

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