Recording of an introductory course held at the 4th International Degrowth Conference for Ecological Sustainability and Social Equity in Leipzig in 2014. Federico Demaria and Giacomo D'Alisa from the French-Spanish organisation Research and Degrowth give an introduction to degrowth. The presentation is based on the introduction to the book "Degrowth. A vocabulary for a new era." and discusses definitions of degrowth, degrowth literature, debates, history and further research to be done.