84 titles: Prepara's own textbooks and free open textbooks, all read in the same online reader.
Introduction to PhilosophyNathan Smith
U.S. HistoryP. Scott Corbett, Volker Janssen, John M. Lund and others
Writing Guide with HandbookMichelle Bachelor Robinson and Maria Jerskey
World History, Volume 1Ann Kordas, Ryan J. Lynch, Brooke Nelson and others
World History, Volume 2Ann Kordas, Ryan J. Lynch, Brooke Nelson and othersTell us the title and when you teach. We reply to every request.