  Non-equilibrium real-space condensation is a phenomenon in which a finite
fraction of some conserved quantity (mass, particles, etc.) becomes spatially
localised. We review two popular stochastic models of hopping particles that
lead to condensation and whose stationary states assume a factorized form: the
zero-range process and the misanthrope process, and their various
modifications. We also introduce a new model - a misanthrope process with
parallel dynamics - that exhibits condensation and has a pair-factorized
stationary state.
