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- Roland Klemke, Khaleel Asyraaf Mat Sanusi, Daniel Majonica, Anja Richert, Valérie Varney, Tobias Keller, Jan Schneider 0001, Daniele Di Mitri, George-Petru Ciordas-Hertel, Fernando P. Cardenas-Hernandez, Gianluca Romano, Milos Kravcík, Benjamin Paaßen, Ralf Klamma, Michal Slupczynski, Stefanie Klatt, Mai Geisen, Tobias Baumgartner 0002, Nina Riedl, editors, Proceedings of the First International Workshop on Multimodal Immersive Learning Systems (MILeS 2021) At the Sixteenth European Conference on Technology Enhanced Learning: Technology-Enhanced Learning for a Free, Safe, and Sustainable World. (EC-TEL 2021), Online (Bozen-Bolzano, Italy), September 20-24, 2021. Volume 2979 of CEUR Workshop Proceedings, CEUR-WS.org, 2021.