Radiation plays a role, in aspects of our lives with applications spanning medicine, industry and research. However, it is crucial to acknowledge that exposure to ionising radiation carries risks to both health and the environment. Thus, understanding the principles of radiation protection and implementing measures to minimize exposure are very important. This ebook is designed for students, professionals or anyone who is interested in learning about radiation protection. It aims to be accessible regardless of one's level of knowledge or experience. It includes examples, illustrations and helpful tips that enable readers to grasp the concepts easily and relate them to real-life scenarios.