Heavy flavour probes of quark matter

A brief survey of the role of heavy flavours as a probe of the state of matter produced by high-energy heavy-ion collisions is presented. Specific examples include energy loss, initial-state gluon saturation, thermalization and flow. The formation of quarkonium bound states from interactions in which multiple heavy-quark-antiquark pairs are initially produced is examined in general. Results from statistical hadronization and kinetic models are summarized. New predictions from the kinetic model for J/ψ at RHIC are presented.