Book excerpt: Principles and Practice of Stereotactic Radiosurgery, Second Edition serves as the definitive reference textbook for SRS practitioners. It provides a theoretical basis for the use of therapeutic radiation including imaging techniques and radiobiology. The bulk of the textbook contains chapters that are comprehensive in scope on all diseases that are treated by SRS. Lastly, it addresses administrative and technical aspects of running an SRS unit. Each chapter provides an expansive treatment of the subject, with emphasis placed on the technical aspects of SRS so that practitioners in this field can use it as a daily reference. Written by noted experts in the field, Principles and Practice of Stereotactic Radiosurgery, Second Edition is the only reference needed for neurosurgeons, radiation oncologists and medical physicists at all levels of training and practice who are interested in SRS.