'Recently, more and more methods inspired by procedures developed by business departments are being applied in network planning and management. A network engineer or researcher should be acquainted with them, at least at the basic level, and [this] book by Maillé and Tuffin can help in this learning effort. The book is a comprehensive overview of crucial issues in the economics of telecommunication networks and services that are valid today. … [It] maintains a balance between theory and practice, [and] therefore … can be used either as a textbook for academic courses or [as] a handbook for practitioners.' Jan Derkacz, IEEE Communications Magazine