Robert Henderson is an Associate Professor of Linguistics at the University of Arizona. His research is in formal semantics and pragmatics with a special focus on the indigenous languages of Mesoamerica, especially Mayan languages, which he has studied through many years of fieldwork. His theoretical work focuses on plurality, quantification, and the structure of discourse, along with the logics needed to model those systems in human languages. Elin McCready is Professor of Linguistics at Aoyama Gakuin University. Her main area of research is formal semantics and pragmatics, with secondary interests in epistemology, game theory, and feminist philosophy. She is the author of the OUP volumes Reliability in Pragmatics (2015) and The Semantics and Pragmatics of Honorification (2019), and co-editor of Epistemology for the Rest of the World (with Stephen Stich and Masaharu Mizumoto; 2018).