The problem most northern supporters have with Adams' book is that he either quotes from the Founding Fathers(of which Tyrant Abe was not), actual newspapers of the day in the north that weren't shut down yet by good ol' Abe, or actual records of the time.
Believe it or not, there was a history before the north came along to revise it. And they call Southerners revisionists for wanting to make it right!!
I might also suggest Black Southerners in Gray edited by Richard Rollins and written by several blacks doing genealogical studies on their families, Black Slaveowners: Free Black Slavemasters in South Carolina by Larry Koger, Robert Durden's The Gray and the Black, and my personal favorite The Confederate Negro by Ervin Jordan, the first black professor at UNC. Jordan's book is a little hard to come by and has to be ordered on an indvidual basis because it is out of print.
For the first though, I would highly recommend Adams' book. Very quick read(although a little dry) and presents the facts, not the dreams of northerners interested in continuing to rewrite United StateS history
I'm sorry but after all the hoopla about Adams' book I must say that I'm completely underwhelmed by it. I think that he makes too many unsubstantiated claims and backs up his writings with a tiny bibliography of only a dozen or so sources. None of which were government sources - from either the north or south. I cranked out a master's thesis with a longer bibliography than that. All in all, a shoddy work. Again, IMHO.