Keynote speakers this year are: Seny Kamara Merav Parter Michael L. Scott Scope The ACM Symposium on Principles of Distributed Computing is an international forum on the theory, design, analysis, implementation and application of distributed systems and networks. We solicit papers in all areas of distributed computing. Papers from all viewpoints, including theory, practice, and experimentation, are welcome. The goal of the conference is to improve understanding of the principles underlying distributed computing. Topics of interest include, but are not limited to, the following: biological distributed algorithms and systems blockchain protocols coding and reliable communication communication networks concurrency, synchronization, and persistence design and analysis of distributed algorithms distributed and cloud storage distributed and concurrent data structures distributed computation for large-scale data distributed graph algorithms distributed machine learning algorithms ...etc Publication Accepted regular papers of up to 10 pages and brief announcements of up to 3 pages in two-column ACM proceedings format will be included in the conference proceedings. They must be formatted with the ACM Master templates using Conference committee Alkida Balliu, University of Freiburg, Germany (Workshop chair) Roberto De Prisco, University of Salerno, Italy (Organizing chair) Arnaud Labourel, Aix-Marseille University, France (Publicity co-chair) Alessia Milani, Aix-Marseille University, France (General chair) William K. Moses Jr., University of Houston, USA (Publicity co-chair) Rotem Oshman, Tel-Aviv University, Israel (Treasurer) Philipp Woelfel, University of Calgary, Canada (Program chair)