Monotonicity, in various forms, is a pervasive phenomenon in logic, linguistics, and related areas. Tshingua university in Beijing is organizing TLLM2020 workshop devoted to recent discussions involving monotonicity. The first day of the workshop will consists of two tutorials on monotonicity in language (Gennaro Chierchia) and logic (yours truly). The remaining two days consist of invited (Gennaro Chierchia, Jo-wang Lin , Floris Roelofsen, Jakub Szymanik) and contributed talks. You can submit 2-page abstracts by November 30.