Preface, Cristopher Moore and David GriffeathSelf-Organized Construction in Sparse Random Arrays of Conway's Game of Life, Nicholas M. GottsSynthesis of Complex Life Objects from Gliders, Mark D. NiemiecA Two-Dimensional Cellular Automaton Crystal with Irrational Density, David Griffeath and Dean HickersonStill Life Theory, Matthew CookReplicators and Larger-than-Life Examples, Kellie Michele EvansGrowth Phenomena in Cellular Automata, Janko GravnerConstructive Molecular Dynamics Lattice Gases: Three-Dimensional Molecular Self-Assembly, Martin Nilsson, Steen Rasmussen, Bernd Mayer, and David WhittenSimulating Digital Logic with the Reversible Aggregation Model of Crystal Growth, Raissa D'Souza, George E. Homsy, and Norman H. MargolusUniversal Cellular Automata Based on the Collisions of Soft Spheres, Norman H. MargolusEmerging Markets and Persistent Inequality in a Nonlinear Voting Model, Nienke A. OomesCellular Automata for Imaging, Art, and Video, Joy V. HughesContinuous-Valued Cellular Automata in Two Dimensions, Rudy RuckerPhase Transition via Cellular Automata, Gadi MoranIndex