Regular and Chaotic Behaviour of Dynamical Systems.- Shocks in the Burgers Equation and the Asymmetric Simple Exclusion Process.- Automata Networks Strategies for Optimization Problems.- Two Chosen Examples for Fractals: one Deterministic, the Other Random.- A Brief Account of Statistical Theories of Learning and Generalization in Neural Networks.- On the R.E.M. and the G.R.E.M..