The International Conference on Cloud Computing and Services Science (CLOSER) focuses on the critical and rapidly evolving domain of cloud computing, inspired by recent advances in infrastructure, operations, and available services across the global network. The conference also emphasizes the importance of Services Science, recognizing the service-oriented nature of most contemporary IT-driven collaborations. Rather than merely combining these two broad fields, CLOSER specifically addresses cloud computing while exploring how Services Science can contribute theories, methods, and techniques to design, analyze, manage, market, and study its various aspects.