This book, based on historical documents and archives on various aspects of Azerbaijani-Swiss relations, is a valuable contribution to the study and investigation of our rich diplomatic heritage. The book examines and analyzes the reasons for the failure of the Confederation initiatives in the Caucasus and Azerbaijan's interest in Switzerland. At the same time, the Swiss and the areas in which they invested are also identified. One of the highlights of this book, presented to a wide readership, is the first clarification of the fate of more than 300 Azerbaijani soldiers missing in World War II. This book, which is of particular importance from the point of view of Azerbaijani sources and historiography, opens the way for Azerbaijani researchers to have direct contact with the primary sources. The fact that the original texts in German and French are also reflected in the book should be particularly emphasized.