An afterword is a literary device that is often found at the end of a piece of literature.  It generally covers the story of how the book came into being, or of how the idea for the book was developed.
Alternatively, it may be written by someone other than the author of the book to provide enriching comment, such as discussing the work's historical or cultural context (especially if the work is being reissued many years after its original publication). 
- ^ "afterword". Dictionary.com, LLC. Retrieved 10 August 2012.
- ^ Pope, Geoff (18 November 2010). ""Foreword" Versus "Forward"". Grammar Girl's Quick and Dirty Tips. MacMillian Holdings, LLC. Retrieved 10 August 2012.