Finally, in my opinion Cooper, Seiford and Tone provides a well-chosen overview of important DEA methods. The book is written in a scientific manner, which is suitable for researchers and students as well as for practioners.' Operations Research Specktrum 23: (2001) Overall, the book is a very useful reference text for researchers as well as students, particularly in engineering and business programms.' Interfaces, 31: 3(2001)