"University libraries catering for academic work in psychology, even if its proponents do not specifically call themselves positive psychologists, can be recommended to put this book on their wish lists." (Reference Reviews, July 2009) "The work is extremely well indexed, which for browsers has the effect of deepening its content substantially." (Choice Reviews, June 2009)"The strength of the work is that it speaks to everyone clearly, concisely, and in plain English." (Library Journal, April 2009)