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The Great Courses

Recorded lecture series on history, science and economics, on disc or by subscription

Recorded lecture series by academics, sold since 1990 on tape, DVD and download and now streamed by subscription, a service that traded for a few years as Wondrium. A course runs from a dozen to several dozen half-hour lectures on one subject: geology, the history of economics, the Roman republic, how the immune system works. People watch on a treadmill or in the evening in place of television, and the format suits anyone who wants a structured tour of a field before reading the books. Individual courses are pricey to buy outright; the streaming plan is a modest monthly fee.

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