Readership: Researchers in number theory, ergodic theory, and dynamical systems (maybe even mathematical physicists); graduate and postgraduate students in mathematics.
Fritz Schweiger, Department of Mathematics, University of Salzburg
"It can be warmly recommended to all readers interested in this difficult theory." - EMS
"... will serve as a reference book for anyone interested in this subject in the years to come." - Zentralblatt Mathematik