Particle physics is a branch of physics that focuses on the study of nature of those particles which constitute matter and radiation. It explores the smallest detectable particles and the fundamental interactions that are necessary to explain their behavior. It also deals with the study of atomic constituents such as electrons, protons and neutrons. Theoretical particle physics seeks to develop models and theoretical framework as well as mathematical tools for understanding present experiments and predict future experiments. There are various applications of the concepts from this field such as producing medical isotopes for research and treatment as well as developing superconductors. The concepts included in this book on particle physics are of utmost significance and bound to provide incredible insights to readers. While understanding the long-term perspectives of the topics, it makes an effort in highlighting their impact as a modern tool for the growth of the discipline. It will provide comprehensive knowledge to the readers.