From the reviews: "The book represents a fairly attempt to offer a modern graduate-level introductory overview to a number of phenomena and applications of nonlinear quantum optics. It can addressed to theoretical and experimental physicists and engineers ... . The book thus touches several aspects, introducing to both well-established and timely topics. ... a good choice for opening up quantum nonlinear optics to beginners, owing to the presence of both standard background material and a comprehensive up-to-date outlook to some of its trends." (Guilio Landolfi, Zentralblatt MATH, Vol. 1122 (24), 2007)