Warming up. Parsing iTunes playlists ; Spirographs -- Simulating life. Conway's Game of Life ; Generating musical overtones with the Karplus-Strong algorithm -- Fun with images. ASCII art ; Photomosaics ; Autostereograms -- Enter 3D. Understanding OpenGL ; Particle systems ; Volume rendering -- Hardware hacking. Introduction to the Arduino ; Laser audio display ; A Raspberry Pi-based weather monitor -- Appendix A. Software installation -- Appendix B. Basic practical electronics -- Appendix C. Raspberry Pi tips and tricks.