Georg-Eckert-Institut – Leibniz-Institut für Internationale Schulbuchforschung, Braunschweig
GEI-Digital visualized provides interactive access to the collection of historic textbooks from Germany. It visualizes temporal and spatial dimensions of the collection which supply insights into developments on the historic textbook market and its actors in Germany. More than 4000 German textbooks are available, including reading primers, geography and historical atlases, history and political studies textbooks, or textbooks for study of the natural and cultural world. They cover a period from the 17th century to the early 1930s.