Slavery from Different Perspectives

There are so many books out there about slavery in the United States, most of them taking a completely yet subtly different view of it.

A Picture of Freedom is a book formatted like a diary written by a slave girl named Clottee. So far, it's the only book I've read that has been from the perspective of a slave. The book has spelling and grammar errors that one might expect from a slave girl who is in the process of secretly learning how to read and write. She forms no overt attachments with any white people, but she does secretly befriend a couple of them.

Candle in the Darkness is a book by Lynn Austin, one of three companion books and so far the only one I've read. The main character is a girl (later woman) named Caroline Fletcher, daughter of a slave owner. However, this girl's real family is comprised of the slaves her father keeps. She loves them all, and they (with the exception of one, who can never forget that she is his mistress) treat her like their own daughter. The other white people in the story are portrayed as incapable of seeing slaves as actual people, with wants and fears and the ability to grow tired after fanning someone nonstop for hours.

The Elsie Dinsmore series that I've mentioned before portrays all of the characters as obviously human and equal. Of course, there is still the whole "I'm your master and you'd better obey me" thing going on, but every character is aware that the differences between black people and white people are purely social. This book emphasizes the differences between Christians, atheists, and make-believers, but the members of all three categories see the slaves as people that can be made to work rather than simply tools.

Those are all the books I can remember reading that take place around that time period. But do you notice the differences? I wonder which way was the "norm."