GSECARS helped sponsor the 2018 Workshop of the IUCr Commission on High Pressure. The purpose of the 2018 workshop of the was to bring together researchers who apply tools of extreme-conditions crystallography to different disciplines of science, including biology, condensed-matter physics, solid-state chemistry, geophysics, materials science, and nanotechnology, and to stimulate discussion about recent developments in their fields and exciting research directions for the future.