IV ISA Forum of Sociology “Challenges of the 21st Century: Democracy, Environment, Inequalities, Intersectionality” will be held in Porto Alegre, Brazil on July 14-18, 2020. The submission of abstracts to over 1000 sessions organized by the Research Committees, Working and Thematic Groups opened on April 25, 2019. You could submit an abstract on-line before September 30, 2019 24:00 GMT.