The proton therapy course at the Paul Scherrer Institute (PSI) in Switzerland provided a comprehensive insight into the clinical, physics, and technological aspects of proton therapy, with a particular focus on pencil beam scanning techniques. The program consisted of engaging lectures, hands-on workshops, and facility tours, which covered topics such as the history of proton therapy, treatment planning systems, clinical applications, and future developments. Participants gained practical experience with treatment planning and simulation, while also exploring the challenges associated with various tumor types and motion management. The collaborative and supportive learning environment fostered by the faculty and staff at PSI enriched the educational experience, empowering participants to better serve their patients in the field of radiation oncology.