It is essential for modern students of molecular behavior to understand the statistical/chemical physics at the heart of modern molecular science. But traditional presentations of this material are often difficult to penetrate. This volume brings "e;down to earth"e; some of the most intimidating but important theories of molecular biophysics. Students build understanding by focusing on topics such as probability theory, low-dimensional models, and the simplest molecular systems. The book's accessible development of equilibrium and dynamical statistical physics makes this a valuable text for students with limited physics and chemistry backgrounds.