Contributions are invited for all topics related to Transient Luminous Events (TLE). Included are TLE observations, the dependence on the underlying lightning drivers and their ELF/VLF electromagnetic signatures, their meteorological correlates, including atmospheric circulation and transport processes, field induced perturbations in the upper atmosphere such as ionization and conductivity, lightning-induced precipitation of electrons from the magnetosphere, infrasonic and gravity waves and chemical perturbations, and possible linkages to the global climate system. Contributions are especially invited describing modeling and laboratory studies, ongoing or new satellite programs, upcoming ground-based and balloon field campaigns.