This is a chart to show the publishing history of editions of works about this subject. Along the X axis is time, and on the y axis is the count of editions published. Click here to skip the chart.Reset chart or continue zooming in. This graph charts editions published on this subject.
![Twelve years a slave by Solomon Northup, Solomon Northup, Jo M Bramenson, [author not identified], Bona Dicta Traduccions, Scherezade Surià, Kevin Theis, Solomon Northup](http://covers.openlibrary.org/b/id/312967-M.jpg "Twelve years a slave by Solomon Northup, Solomon Northup, Jo M Bramenson, [author not identified], Bona Dicta Traduccions, Scherezade Surià, Kevin Theis, Solomon Northup")