The Indo‑European Dialects is a foundational work of historical linguistics that investigates how the Indo‑European language family diversified into its major regional branches. Originally delivered as lectures and first published in the early twentieth century, the book remains essential reading for understanding how phonological, morphological, and lexical evidence reveals ancient patterns of language contact, migration, and cultural development. Including Indo‑European, Indo‑Iranian, Greek, Italic (including Latin), Celtic, Germanic, Baltic, Slavic, Armenian, Albanian, Anatolian, and Tocharian, Meillet’s comparative approach situates dialect differences within a broader historical framework, making this volume a lasting contribution to Indo‑European studies and to the methods of linguistic reconstruction more generally. 
The author, Antoine Meillet, was one of the most influential linguists of the twentieth century and a central figure in the development of Indo‑European comparative grammar. This edition is expertly translated by Samuel N. Rosenberg, whose careful scholarship preserves Meillet’s analytical precision while making the work accessible to modern English‑language readers. The volume is further enhanced by scholarly notes, bibliographical references, and indexes that increase its usefulness for research and teaching. 
This book will be of interest to linguists, philologists, classicists, and historians of language, as well as graduate and advanced undergraduate students studying historical linguistics. It will also appeal to readers interested in how language evidence informs the study of prehistoric societies and cultural connections across Europe and Asia.