PRIMA 2022: principles and practice of multi agent systems : 24th International Conference Valencia Spain November 16 18 2022 proceedings This book constitutes the refereed proceedings of the 23rd International Conference on Principles and Practice of Multi Agent Systems PRIMA 2020 held in hybrid mode in Valencia Spain in November 2022. The 31 full papers presented together with 15 short papers and 1 demo paper were carefully reviewed and selected from 100 submissions.The conference covers a wide range of ranging from foundations of agent theory and engineering aspects of agent systems to emerging interdisciplinary areas of agent based research