Magnetic reconnection is a key process in space, astrophysical, and laboratory plasmas that explosively converts magnetic energy into kinetic energy of charged particles. Thanks to recent spacecraft missions (e.g., MMS, Cluster, THEMIS, Parker Solar Probe, etc.) and the development of numerical simulations, many new findings have been achieved in the last several years. Also, many important issues remain: the triggering mechanisms, quantitative aspects of the energy conversions, identification of the electron diffusion/dissipation region, coupling across multiple scales, and so on. This session invites presentations on all of the aspects associated with magnetic reconnection from the spacecraft measurements, theoretical analysis, numerical simulations, and laboratory experiments.