A. Readear can identify with the narrator making the issue of slavery less abstract.
When you read the life of someone that wrote it first hand instead of numbers or experiences by third parties, you can actually feel and be identified with the narrator, he who suffered all of those injustices is a human, just like me, with feelings, hopes, dreams and fears, just like me, that is why it´s more appealing and interesting to read the autobiography than other works on slavery.