The book investigates the historical development and structure of the Baltic verb system. It draws upon comparative linguistics and historical reconstruction to analyze the evolution of verb forms, tenses, moods, and aspects within the Baltic language family, specifically focusing on Proto-Baltic and its descendants like Lithuanian and Latvian.

This monograph is recognized within specialized linguistic circles as a significant contribution to the study of Baltic historical linguistics. Its detailed analysis and comparative approach are valued for their rigor in reconstructing verb morphology. The work is considered a foundational text for scholars focusing on the evolution of Baltic languages and their Indo-European connections.