This quick self-study (QSS) course is intended to introduce the learner to stereotactic body radiotherapy (SBRT) and it’s role within radiation therapy. The course will provide an introduction to SBRT, its evolution and indications for use for certain patients. Immobilization, simulation, treatment planning and quality assurance will all be discussed in relation to SBRT. As well, there will also be a brief overview on individual tumour sites that benefit from stereotactic body radiotherapy. When the course has been completed the learner should be able to understand overall basics of SBRT and how it applies within the different departments within radiation therapy. The learner will also understand how SBRT will benefit specific patients and tumours sites.