The volume is a collection of most of the contributions presented at the Trends in Classics - Greek and Latin Linguistics I Conference combined with the 2nd Postclassical Greek Conference held in Thessaloniki (October 12–14, 2023) which is part of the activities of the Postclassical Greek Network. It delves into different aspects of Postclassical Greek both from a synchronic and a diachronic perspective, covering all major linguistic levels of analysis from phonology to morphology, syntax and pragmatics. The scholarly investigations of the volume are a combination of general and finegrained analyses that aim to contribute to a better understanding of both the Greek language itself and various general linguistic issues. In particular, the volume comprises studies on phonological developments, verbal and nominal morphosyntax, negation, word order, strategies for performing greetings, religious discourse, semantic analyses across Byzantine lexicography, and language contact. Fina lly, it includes five short contributions, presenting ideas about and aims of the project of the "New Historical Grammar of Greek".