The present volume in the series Empirical Issues in Syntax and Semantics collects a curated selection of papers from the 2023 Colloque de Syntax et Sémantique à Paris (CSSP 2023), held on December 7-8, 2023, at the École Normale Supérieure in Paris. The result aims to be a snapshot of contemporary linguistic research in the areas of syntax and semantics. The eight contributions investigate phenomena spanning focus, meaning, modification, and discourse, offering new insights into how grammatical structures encode and convey information, and illustrating how detailed empirical work informs our understanding of grammatical phenomena. Drawing on data from multiple languages and employing diverse analytical frameworks, these studies advance current debates while maintaining the methodological rigor characteristic of contemporary formal linguistics. The collection provides a valuable resource for researchers and graduate students working in syntax, semantics, and related areas.