Making science for the future and studying its past. To the 80th Birthday of Reinhard Folk

Reinhard Folk's scientific work challenged hot topics of condensed matter physics: theory of ferroelectrics, superconductors, superfluids, regular and structurally disordered magnets, spin and quantum liquids, and neural networks.Results of his research deepened our understanding of static and dynamic features of phase transitions and critical phenomena in these systems and laid the foundation for future developments in these fields.Computing algorithms and resummation methods of asymptotic perturbation series proposed by Reinhard Folk and his collaborators cover a wide range of applications.His important contribution to physics was recognised by the academic community.In