"Radiation Oncology Fundamentals" is a concise yet comprehensive course designed for healthcare professionals and students seeking a foundational understanding of radiation oncology. This course delves into the basic principles of radiation therapy, including the physics of radiation, radiobiology, and the technical aspects of treatment planning and delivery. It covers key topics such as patient assessment, treatment modalities, and the management of common side effects. The course also introduces advanced concepts like stereotactic radiosurgery and brachytherapy, providing a well-rounded view of current practices in radiation oncology. Emphasizing both theory and practical application, this course is ideal for those aspiring to work in radiation therapy or looking to enhance their knowledge in this vital field of medicine.