1-2-3 of Modular Forms

This book grew out of three series of lectures given at the summer school on "e;Modular Forms and their Applications"e; at the Sophus Lie Conference Center in Nordfjordeid in June 2004. The first series treats the classical one-variable theory of elliptic modular forms. The second series presents the theory of Hilbert modular forms in two variables and Hilbert modular surfaces. The third series gi...