Managing a project as Customer or as Contractor is not the same thing and even though both have the same goal (to successfully implement the project) each of them will have to manage it taking account of his own role. The purpose of this book is to deal with the project management activities related to the resources, the works, the risks, the time and the costs by specifying how they should be addressed by Customer and Contractor to ensure that both Parties know what to do and understand what each of them expects from the other. The book provides concepts, criteria and data coming from the management experience of complex international projects, offering useful information to execute a project, starting from the initial stage of preparation and planning until its satisfactory conclusion. It describes how to communicate progress and results and it explains how to face and overcome the most critical issues. The book target is to help the "insiders" to complete the project with success and profit and the “beginners” to “start the art” that is to know the beauty of Project Management and to learn how to do it.