Editorial to \"Surface-Bounded Exospheres and Interactions in the Inner Solar System\".- Particles and photons as drivers: Comparison between Moon and Mercury.- Surface Exospheric Interactions.- Meteoroids as one of the sources for exosphere formation on airless bodies in the inner solar system.- Volatiles and refractories in surface-bounded exospheres in the inner Solar System.- Comparative Na and K Mercury and Moon exospheres.- Water Group Exospheres and Surface Interactions on the Moon, Mercury, and Ceres.- The Exosphere as a Boundary: Origin and Evolution of Airless Bodies in the Inner Solar System and Beyond Including Planets with Silicate Atmospheres.- Future directions for the investigation of surface-bounded exospheres in the inner Solar.