Cephalometrics has been used in orthodontics for diagnosis, treatment planning, to evaluate the dentofacial changes during treatment and to assess the dentofacial growth and development. Cephalometrics makes use of certain landmarks on the skull. The first important step in cephalometric analysis is accurate location and tracing of cephalometric landmarks on the cephalogram. Any error in tracing the landmarks may result in incorrect cephalometric analysis. This book focuses on understanding the various cephalometric landmarks. Each cephalometric landmark is explained in detail including its abbreviation, definition by various researchers, origin and radiographic anatomy of the landmarks.