- Dmitry Ustalov, Fabio Casati, Alexey Drutsa, Ivan Stelmakh, Nikita Pavlichenko, Daria Baidakova, editors, Proceedings of the 2nd Crowd Science Workshop: Trust, Ethics, and Excellence in Crowdsourced Data Management at Scale co-located with 47th International Conference on Very Large Data Bases (VLDB 2021), Copenhagen, Denmark, August 20, 2021. Volume 2932 of CEUR Workshop Proceedings, CEUR-WS.org, 2021.