Compare and contrast Harriet Jacobs' Incidents in the Life of a Slave Girl and Frederick Douglass' An American Slave.

As noted in the above answer, both Jacobs and Douglass
relay their stories as slaves in the American south.  As such, they are both similar in
that they describe their relationships with the owners of the plantations on which they
live, the way of life on the plantations, and the hardships that they struggled to
endure.  However, Jacobs and Douglass employ quite different writing styles to tell
their stories.  In Incidents in the Life of a Slave Girl, Jacobs
more often breaks from the standard tone and style of the slave narrative and uses
emotional language to convey events.  For example, in the chapter about the slaves' New
Year's Day, the narrator explains that slave families were often broken because they
were taken to the auction block at the start of the year.  The narrator then uses
exclamation points and interjections to express the anguish that slave mothers felt when
they were separated from their children.  In contrast, Douglass does not use this type
of language in Narrative of the Life of Frederick Douglass.  His
tone and style are much more objective (the only exception is the apostrophe in the
middle of the narrative that explores Douglass' watching the ships in the harbour). 
This is a major difference between the two narratives.