This new and exciting interactive resource centers around fourteen high quality computer simulations covering essential topics in solid state physics, at advanced undergraduate or graduate level. The computer simulations provided on CD-ROM 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. See http://www.ruph.cornell.edu/sss/sss.html for example simulations. 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. The hardcover edition includes the simulations on CD-ROM and a licence for use on a local area network on a single geographical site. The paperback edition (without CD-ROM) is intended for students who have access to the simulations on a local area network.