The study looks at important issues related to teaching the theory of public goods in the field of public finance. It focuses on understanding what public goods are, how they are provided, the connection between public goods and externalities, and the growth of this theory over time. The researchers examine the use of Public-Private Partnerships (PPP) between governments and companies to support the theory of public goods. Key goals include clarifying the concepts and features of public goods and exploring different ways they can be delivered to the public. The study aims to enhance the teaching and understanding of public goods theory for future applications.