Let's say I have already published a book. Now, on the website for this book, I want to post additional documents, numbered like 1, 2, .... What word is best to use to describe each of these documents?
Would "Addendum" work? Like "Addendum 1", "Addendum 2", or is Addendum more for things at the end of the book itself?
Feel free to suggest other words. I suppose "Supplement" is another alternative.