The grammatical study of the Greek language is the oldest in the Western world, dating back at least to the linguistic reflections of Plato, Aristotle and the Stoics. Ancient Greek texts and testimonies continue to be studied in three main directions: 1. analyzing new texts, not known until now, 2. revising known data from contemporary linguistic perspectives, and 3. proposing new theoretical perspectives from the detailed analysis of Ancient Greek data. These two volumes contain 46 articles, originally presented at the 10th International Colloquium on Ancient Greek Linguistics, held at the Universidad Autónoma de Madrid, in June 2022. They are organized in five major sections, devoted, respectively, to the History of the Greek language: Phonetics and Morphology, Lexicon and Semantics, Syntax, Pragmatics and Discourse, and Digital methods of linguistic analysis. As a whole, they constitute an important advance in the description of Ancient Greek, while also providing an overview of the current state of the research on this language and of the main lines along which this study runs. Finally, they remind us of the extraordinary phenomenon of having continuous linguistic data on a language, such as Greek, for over 3,600 years.