Not sure what that book has to do with the subject of the thread but I might read it someday.
The first, because it provides a definitive refutation-once and for all-of the baseless assertion that the South-which, at the time, consisted of only five states-would have irrevocably severed its ties to the other thirteen colonies, had chattel slavery been abolished in the original framing of the U.S. Constitution.
The second, because it illustrates-in enthralling detail-why Abraham Lincoln was the single greatest wartime leader that this nation has ever had.