The 19th Electromagnetic and Light Scattering Conference (ELS-XIX) will be held at the ITMO University, St. Petersburg, Russia, on 13-17 July 2020. It will build on the remarkable success of the previous ELS conferences held in Amsterdam, Helsinki (twice), New York, Vigo, Halifax, Gainesville, Bremen, Salobreña, St. Petersburg, Bodrum, Hatfield, Taormina, Lille, Leipzig, College Park, College Station, and Hangzhou. The main objective of the conference is to bring together scientists and engineers studying various aspects of light scattering and to provide a relaxed academic atmosphere for in-depth discussions of theoretical advances, measurements, and applications.