What are the differences between jacobs's incidents and Douglass's Narrative?

Incidents in the Life of a Slave Girl details the horrific experiences endured by Jacobs. In the preface to the book, Jacobs, as Linda Brent, states that her "adventures may seem incredible," but assures readers that her "descriptions fall short of the facts." Brent describes her life as a slave from her early years, when she did not even know she was a slave, to the violence and exploitation she endured as a teenager at the hands of her master, and finally to her repugnance at the thought of her well-meaning employer purchasing her in order to free her. We can assume that many of the horrendous incidents are based on her own experiences but, as she points out, were worse in real life.