Chest Diseases constitute one of the disease groups that primary care physicians and emergency department physicians frequently encounter in terms of health issues. Although this book has been prepared as a student textbook, it will also be useful for young physicians in routine practice, especially in the field of Chest Diseases, during the post-graduation period. The book's course topics and scope have been prepared in accordance with the National Core Education Program. We are pleased to offer this book to our students, as we believe it covers the information they will need during and after their internships and serves as a guide for further information.