Lung cancer is a malignant lung tumor that causes uncontrolled cell growth in lung tissues. There are two most common types of lung cancer, namely, small cell lung cancer and non-small cell lung cancer. Majority of the lung cancer cases are caused by long-term tobacco smoking. The symptoms and signs of lung cancer include chest pain, headache, a new cough that won't go away, shortness of breath, bone pain, and hoarseness. Computed tomography (CT) scans and chest radiographs are commonly used to view lung cancer. The diagnosis of lung cancer is done through a biopsy, which is commonly performed using CT guidance or bronchoscopy. The primary method for preventing lung cancer is to minimize risk factors, such as air pollution and smoking. The treatments and long-term outcomes of lung cancer rely on the stage and the type of cancer, as well as the person's overall health condition. Some of the common treatments are radiotherapy, surgery and chemotherapy. This book unravels the recent studies on lung cancer. It contains a detailed explanation of the various diagnostic and therapeutic techniques associated with this disease. The extensive content of this book provides the readers with a thorough understanding of the subject.