The book "Relational Supply Contracts" by Michaela I. Höhn offers a comprehensive analysis of relational contracts in the supply chain. It examines how informal agreements based on the value of future cooperation influence the relationships between suppliers and buyers. By considering a two-firm supply chain model, it demonstrates how repeated transactions and continuous quality improvements can be governed by a relational contract. The book develops guidelines for structuring investments in quality and flexibility to maximize joint benefits. Additionally, it analyzes the performance of various return mechanisms in the context of relational contracts, supported by practical industry analyses. This study is particularly relevant for professionals in the field of operations and supply chain management who wish to gain a deeper understanding of the dynamics of relational contracts.