The study circle is described as a democratic and emancipatory method for learning that can be summarized in three words: learning by sharing. This method offers opportunities and possibilities for all participants to contribute their previous knowledge and experiences through open and democratic dialogue. As a method for "liberal adult education," the study circle has existed for a hundred years. It follows the "top-to-bottom approach" for enlightenment developed in the eighteenth century, expressed, for example, through the University Extension movements in France, England and Scandinavia. "For the people, by the people" became the political slogan that influenced the study circle and the adult education system in Scandinavia for years. In this article, the author covers study circle history, tradition, research, practice, development and challenges for the future. [The article is based on a presentation at the Uruguayan governmental conference on learning for youngsters and adults in Montevideo, June 2006.] (Contains 7 notes.)