The special topic on Potential Physics at a Super τ-Charm Factory provides detailed discussions on important topics in τ-charm physics that will be explored in the future at a possible super-tau-charm factory, which will operate in the 2 GeV to 7.0 GeV energy range. Both theoretical and experimental issues are covered, including extensive reviews of recent theoretical and experimental developments. Among the subjects covered are: probes of hadronic states and structure of hadrons, charmed meson and charmed baryon decays, tau physics, and possible newphysics search at low energy. This renaissance has been driven in part by the experimental reports of neutral D mixing and the discovery of charmonium-like XYZ states at both B factories and BESIII, and the observation of an intriguing proton-antiproton threshold enhancement and the possibly related X(1835) meson state at BESII. [Photo credits: K. A. Olive, et al. (Particle Data Group), Chin. Phys. C, 38, 090001 (2014) &Hai-BoLi, Institute of High Energy Physics, Chinese Academy of Sciences]
