Public-private partnership (PPP) in infrastructure is a relatively new experience in most developing countries of the Asian and Pacific region. Although many governments have considered various steps to promote PPPs in their countries, lack of capacity in the public sector remains to be one of the major problems in implementing PPP projects. This Guidebook describes the overall process and activities usually involved in PPP project development, implementation and management. It has been developed as a general resource material for better understanding of the whole process. The Guidebook also revisits some of the basics of PPPs to help understand the process and the requirements for developing successful projects. As the actual process followed in a country depends on its administrative and institutional arrangements, this Guidebook is not a substitute for manuals/advisory guidelines that many countries have developed∗ and other countries may consider to develop.