This book constitutes the refereed proceedings of the 14th Symposium and Summer School on Service-Oriented Computing, SummerSOC 2020, held in Crete, Greece, in September 2020.*The 9 full and 2 short papers were carefully reviewed and selected from 23 submissions. The papers mainly focus on IoT and cyber-physical systems, advanced application areas, cloud and edge, and service-based applications.*The conference was held virtually due to the COVID-19 pandemic.