The book "The Life and Death of Jan van Barneveld, Advocate of Holland: With a Review of the Principal Causes and Movements of the Thirty Years' War - The Complete Collection (1609-1615)" by the famous historian John Lothrop Motley tells about the uneventful life path of Jan van Barneveld, a prominent advocate of justice in Holland. The author examines the causes and course of the Thirty Years' War, as well as their impact on the fate of an individual and the entire country. The collection offers the reader a deep dive into the political, social and cultural aspects of the period, revealing the complex interstate relations and important events of the time. Motley's work is a valuable source for understanding the history of Europe at the beginning of the 17th century, and also helps in an in-depth analysis of the personality of Jan van Barneveld, who played an important role in the development of Holland and the world politics of his time.