Infrastructure development has always been one of the fundamental measures of a country’s progress and development. In the past, infrastructure development was mostly implemented by public sector using its own resources and acting as the main financier and owner of such infrastructure projects to meet the needs of growing economies. As the population of the world kept increasing at enormous rates and due to competitive landscape between global economies, the need for infrastructure development kept pacing up exponentially. As countries tend to have limited financial resources when it comes to cover all the needs, generally the countries tends to focus on certain sectors of economy to be owned and developed by the public sector where as private sector participation becomes a necessity in other sectors of economies that needs financing over the limited public resources. To resolve the financial constraints faced by public sector in developing infrastructure, more and more countries are moving towards private sector participation to have such projects financed and implemented through Public-Private Partnerships (PPPs). PPPs, if structured and delivered in the most optimal manner, are known to also result in increased quality of service delivery and a lower NPV of costs associated with such infrastructure project when compared to public sector implementation. PPPs are complexed structured and comes in many forms. This book covers different form of private public partnerships and relevant pros and cons of each such form. Towards the end, the book focuses on project finance structure which is usually structured as build-own-operate and/or transfer basis and is required for large scale infrastructure projects and the author’s core experience is delivery of infrastructure on these type of PPP structure. There are several PPP guides available in the market, however, we, have tried our best in this book to summarize the learnings from our experiences. This book can be considered the first book to be written on PPPs focusing on the Kingdom of Saudi Arabia commercial requirements and risk allocation framework and incorporates knowledge of the wider GCC region. Lessons learned to make a PPP project successful are provided towards end of the book.