From the reviews: "It provides a lucid account of some of the modern technologies and methods in radiation therapy in which the author has been a leader. ... Goitein's avoidance of mathematical formulas makes his treatise easily readable. The footnotes that elaborate concepts and definitions are useful, and the author explains concepts clearly and provides extensive illustrations and understandable diagrams. ... is an invaluable resource not only for the experienced practitioner but also for the radiation oncologist, medical physicist, or dosimetrist who is new to the field." (Dan Jones, Physics Today, Vol. 61 (12), December, 2008)