Active Library in German consists of the ballad Herr von Ribbeck auf Ribbeck im Havelland by Theodor Fontane. There are exercises related to the ballad and also cross-curricular exercises (plurilingual education) that can be found on the left.

Every single exercise can be done separately or as a unity. Exercises are based on Theodor Fontane's ballad which is available in different forms for listening and watching.