ISSTA 2020 is a research symposium on software analysis and testing. This symposium is scheduled to be held in Los Angeles, the USA from July 18 to 22, 2020. The conference offers a platform for academicians, practitioners, professionals, and researchers to gather together and share knowledge and experience in the domain of software testing and analysis. The various tracks in the symposium include tool demonstration, technical paper presentations, doctoral symposium, keynote addresses, workshops, artifact evaluations, and tool demonstrations. The workshops will focus on Testing, Analysis, and Verification of Cyber-physical Systems and the Internet of Things.