This new and exciting interactive resource centers around fourteen high quality computer simulations covering essential topics in solid state physics. The simulations cover x-ray diffraction, phonons, electron states and dynamics, semiconductors, magnetism, and dislocations. Users can vary different characteristics and immediately see the results in animations and graphical displays. The companion book is essential for effective use of the simulations. It guides the user through hundreds of exercises and examples, illustrates fundamental physical principles, and contains notes on the relevant physics. This paperback (without CD-ROM) is intended for students who have access to the simulations on a local area network. This package provides an interactive resource for those studying solid state physics at advanced undergraduate or graduate level. It will also be of interest and value to researchers in physics, materials science, electrical engineering, chemistry and chemical engineering.