Using case studies of Cisco Systems, General Motors, Barnes & Noble, Amazon.com, Microsoft and many lesser known examples, Cohan focuses on three areas: financial and strategic evaluation of e-commerce, managing change, and building an infrastructure. In addition to the case studies, each chapter offers methodologies and the principles supporting them, helping readers to understand in concrete terms what needs to be done and why…A virtue of Cohan’s approach is that he suggests both what to do and what not to do.