How about half a dozen or so?
But a good judge is if the author is promoting or justifying government expanse or unconstitutional measures, while condemning people standing up for constitutional rights, then you can guess which side of t he line they are on. :-)
I suspect that your classification is a bit more elementary than that. If they appear to support the Confederate point of view, conservative. If they appear to support the Union, liberal. If they hate Lincoln with a passion, conservative. If they don't consider Lincoln evil incarnate, liberal. Am I close?
I haven’t wasted my time reading most of those books since I was a teenager. So of course I don’t remember the names. But probably half the ones at your local book store are that type. They give the image of the South was all evil and the North was all good as if things were that simple, and they often try to promote a sense of white guilt for slavery. Everything Lincoln did was good, all Southerners were racists and all Northerners supported abolition. While most don’t take it quite to this extreme, some do (I remember reading them as a child), and many come pretty close.
I think you are mistaken, particularly regarding Lincoln. I do not fault him for taking action during a war to win that war. But lets not forget Lincoln was railroad lawyer before going into politics. I think he would have made peace with a seceding south but his northern commercial and industrial patrons wouldn’t have it.
I also think if Lincoln had lived, we would never have seen that shameful period in American history called Reconstruction. I do believe he was sincere about reuniting the nation while most Republicans saw the south as a conquered territory to be plundered and politically manipulated for own gain.