I thought I knew a lot about this era but this book gave me even greater insight. I hesitated to read it at first because I'm a little skeptical of those "in their own words" treatments.But Oates presents a balanced (for the most part) account, using the speeches, letters, and diaries of the likes of Henry Clay, John Brown, Frederick Douglass, Harriet Beecher Stowe, Jefferson Davis, Mary Boykin Chesnut, Stephen A. Douglas, and Abraham Lincoln rather than creating monologues for them of his own design. He doesn't result to dramatic license, trying to make these folks conform to his idea of what they were like, but presents them as accurately as one can given the sources available. The only quibble I'd put forth is that he has Calhoun refer to his slaves as "niggers," even though there is no documentary evidence that he ever did so (even in private letters he referred to them as "negroes"). Anyone interested in the issues and events that led up to the Civil War must read this book! I recommend it most highly.