Lung cancer is a malignant tumor of the lung that is characterized by uncontrolled growth of cells in lung tissues. When the cancer metastasizes, it can spread beyond the lung into nearby tissues and parts of the body. It presents symptoms such as shortness of breath, weight loss, coughing and chest pains. The majority of cases of lung cancer are caused due to long-term tobacco smoking. It can be detected through computed tomography scans and chest radiographs. The diagnosis is confirmed with a biopsy. The treatment and prognosis of the cancer depends on the type of cancer, its stage and the performance status of the patient. Most lung cancers are not curable. However, treatment strategies such as chemotherapy, radiotherapy and surgery may be used for the management of lung cancer. This book is compiled in such a manner, that it will provide in-depth knowledge about the diagnosis and treatment of lung cancer. It is a valuable compilation of topics, ranging from the basic to the most complex advancements in oncology. It aims to serve as a resource guide for students and experts alike and contribute to the growth of the discipline.