This volume offers insight into different aspects of an interesting but fairly understudied language family, opens a path to new inquiries, and provides valuable contribution to linguistics, in general, and to Iranian linguistics, in particular. The articles in this volume offer novel analyses of significant properties of some of the Iranian languages, and contribute to various linguistic subareas such as experimental and historical linguistics as well as the morphology, syntax and semantics of several members of this language family. Specifically, this volume features a few articles on the Ezafe construction which shed new light on this interesting phenomenon of Western Iranian languages from historical, comparative and syntactic points of view. Moreover, a few articles address the syntax and formal semantics of properties of Persian, offering new insight into particular constructions in this language which are also fruitful for the general theory of linguistics. Crucially, all authors raise important questions, opening up the path for further investigations.