Must be a historical monograph

There will be two critical reviews of monographs. Each review will be 900-1100 words long and be modeled after critical reviews in academic journals such as the American Historical Review or The William and Mary Quarterly.  A book review concentrates on identifying and critiquing on the authors thesis. What is the author trying to argue, what evidence do they use, and do you agree and disagree? It is not just a simple summary of the book.