In the first volume, Jucherau provides a general picture of the contemporary Ottoman society, state organization, and economy, but the sections he devotes to the Ottoman military is larger in scope and more detailed. His knowledge of the different segments and units of the Ottoman military and observations on their backwardness when compared to the European armies, help understanding of the importance of military reform in the Ottoman Empire. He had personal access to many important Ottoman statesmen of the period and gained first-hand knowledge on many issues. He also provides information about the decline of central authority and the rise of provincial elites (ayân). What makes his work valuable for this turbulent period is his eyewitness account of the Janissary revolts of 1807 and 1808, which cost Selim III and Mustafa IV their lives, and which led to the accession of Sultan Mahmud II. The second volume of the book is dedicated to these events. The first edition does not contain the map of the Ottoman Empire by Jean Baptiste Poirson after Tardieu the elder, which is included in the second edition, which was published in 1822.