This book constitutes the refereed proceedings of the International Workshops on Highlights in Practical Applications of Agents, Multi-Agent Systems, and Cognitive Mimetics. The PAAMS Collection, PAAMS 2023, held in Guimaraes, Portugal, during July 12–14, 2023. The 14 full papers included in this book were carefully reviewed and selected from 26 submissions. They were organized in topical sections as follows: provides a unique opportunity to bring multi-disciplinary experts, academics, and practitioners together to exchange their experience in the development of agents and multi-agent systems.

This book constitutes the revised selected papers from the 6th International Conference on Agreement Technologies, AT 2018, held in Bergen, Norway, in December 2018. The 11 full papers and 6 short papers presented in this volume were carefully reviewed and selected from a total of 28 submissions. The papers discuss new ideas and techniques for the design, implementation and verification of next generation open distributed systems centered on the notion of agreement among computational agents. They are organized in the following topical sections: AT foundations and modelling of reasoning agents; argumentation and negotiation; coordination in open distributed systems with applications.