The book "The Constitutional Development of Japan 1853-1881. Johns Hopkins University Studies in Historical and Political Science, Ninth Series" by Ienaga T. (Toyokichi) is a study of an important period in the history of Japan, when the country was experiencing significant changes in its constitutional development . The author examines in detail the events and processes that took place at that time, revealing their effects and consequences for the political life of the country. In his work, Ienaga reveals the key aspects of the formation of constitutional principles in Japan, highlighting the influence of external factors on internal political transformations. Analyzing legislative initiatives and reforms, the author helps the reader better understand the dynamics of constitutional development in this country. "Constitutional development of Japan 1853-1881." offers readers an in-depth study of the history of Japanese statehood and the constitutional transformations that took place during this period. This book is an important source for those interested in the political history of Japan and the processes of formation of its legal system.