Other forms: afterwords
In a book, the afterword comes at the very end and tells you something about how it came to be written. The afterword is often written by someone other than the book's author.
An afterword is similar to a foreword — the only difference is that it comes at the end of a text, instead of at the beginning. Unlike an epilogue, which wraps up a story, an afterword is separate from the narrative, and it's rarely written by the author. Instead, it's commentary by another writer that gives the reader extra information about how the book was developed, how it fits into a historical context, or biographical details about its author.