The book is structured around eight chapters, synthesising our own empirical research, but also that of our scientific colleagues who were the first to look at this new section of economics. After the theoretical literature, of course, which is not exhaustive, the second chapter deals with a differentiated use of PPPs in Africa, the third chapter with the origins of the development of public-private partnership contracts, the fourth chapter with public-private partnerships in the infrastructure sector and how to go about it, Chapter five (V), on the investment climate for PPPs, Chapter six (VI), on public-private partnerships, why, where, when and how, Chapter seven (VII), on the issues and challenges of infrastructure financing: PPP, and finally, we conclude with Chapter Eight (VIII), which focuses on economic policy recommendations for public policy makers.