Below are animations for the percolation model (Chapter 1), the Ising model (Chapter 2), the Bak-Tang-Wiesenfeld model, the Oslo model, and the Olami-Feder-Christensen spring-block model (Chapter 3). The Windows version is a .zip file. The Linux version is a .gz executable file. The Linux executable file will run on a Unix platform using Qt. The animations were created by Dr Nicholas R. Moloney, Imperial College London, October 2005.