This book constitutes the proceedings of the 20th International Conference on Coordination Models and Languages, COORDINATION 2018, held in Madrid, Spain, in June 2018, as part of the 13th International Federated Conference on Distributed Computing Techniques, DisCoTec 2018. The 12 full papers included in this volume were carefully reviewed and selected from 26 submissions. The papers cover a wide range of topics and techniques related to system coordination, including: actor-based coordination, tuple- based coordination, agent-oriented techniques, constraints- based coordination, and finally coordination based on shared spaces.

This volume was published in honor of Rocco De Nicola's 65th birthday. The Festschrift volume contains 27 papers written by close collaborators and friends of Rocco De Nicola and was presented to Rocco on the 1st of July 2019 during a two-day symposium held in Lucca, Italy. The papers present many research ideas that have been influenced by Rocco's work. They testify his intellectual curiosity, versatility and tireless research activity, and provide an overview of further developments to come. The volume consists of six sections. The first one contains a laudation illustrating the distinguished career and the main scientific contributions by Rocco and a witness of working experiences with Rocco. The remaining five sections comprise scientific papers related to specific research interests of Rocco and are ordered according to his scientific evolution: Observational Semantics; Logics and Types; Coordination Models and Languages; Distributed Systems Modelling; Security.

This book constitutes the thoroughly refereed post-conference proceedings of the 10th International Symposium on Trustworthy Global Computing, TGC 2015, held in Madrid, Spain, in August/September 2015. The 10 revised full papers presented were carefully reviewed and selected from 19 submissions. The Symposium on Trustworthy Global Computing focuses on frameworks, tools, algorithms, and protocols for open-ended, large-scale systems and applications, and on rigorous reasoning about their behavior and properties.