This R25 program will support the development and implementation of short courses to prepare nurse scientists, and scientists in aligned fields, to conduct firearm injury prevention research in support of the NINR Strategic Plan (https://www.ninr.nih.gov/aboutninr/ninr-mission-and-strategic-plan). Applications for courses that build on the existing knowledge, approaches, methods, and techniques related to injury prevention to advance research specifically in the area of firearm injury are encouraged. Proposed courses should include content related to inequities in firearm injuries (e.g., race, ethnicity, socioeconomic position, gender, geography, and their intersections) and research at the individual, community, institutional, and structural levels.