With Earth Primer, you can join a guided tour of how Earth works, with the forces of nature at your fingertips. Visit volcanoes, glaciers, sand dunes. Play with them, look inside, and see how they work. Earth Primer defies existing genres, combining aspects of science books, toys, simulations, and games. It is a new kind of interactive experience which joins the guided quality of a book with open ended simulation play. A key motivation behind the creation of Earth Primer is to model a new genre for other designers to borrow from, helping our culture reimagine the possibilities inherent to simulations and interactive books.