The world is a place full of nonequilibrium phenomena: an avalanche sliding down a sandpile, a traffic jam forming at rush hour, the dynamics of electrons inside a strongly voltage-biased electronic device, the turmoil of markets following an economic instability, the diffusion-limited reaction of chemical constituents and many others are examples of situations where a large number of correlated constituents evolves under “out-of-equilibrium” conditions. Statistical nonequilibrium physics is concerned with the identification and understanding of universal structures that characterise these phenomena. Notwithstanding the existence of powerful principles of unification, it is clear that a theory addressing the dazzling multitude of nonequilibrium phenomena must be multi-faceted. And indeed, nonequilibrium statistical physics is a strongly diversified field comprising many independent sub-disciplines. But this is not the only remarkable feature of this branch of physics.