Various parts of the American public have always had a love-hate relationship with William Tecumseh Sherman, and this book helps to explain why.
He's hated in the South, and gets mixed reviews from the African American community because of his views at the time, and this book does a good job of explaining both.
Sherman felt that the lack of consequences for the civilians in the South were part of why the war dragged on, so he set out to remedy that. On the march of his troops through Georgia and the Carolinas, he was unsympathetic to these civilians who finally had to pay at least a small price for the war they had supported, as a community. Individual union-supporters were not exempt, because he felt that they hadn't done enough to prevent or to end the war.
African Americans both benefited and suffered from Sherman's policies. Out of military necessity, he caused a great deal of suffering, and even his beneficial acts turned out to be temporary.
The first-person accounts do an excellent job of bringing the story to life in an understandable way.