The author's first point was that anything with a unique ISBN is treated as a different book. > From a sales tracking perspective, books are published in multi

The author's first point was that anything with a unique ISBN is treated as a different book. > From a sales tracking perspective, books are published in multiple formats, each with different ISBNs. I wrote one novel, but from a title count POV I actually published 4 books: hardcover, paperback, ebook, and audiobook. Other books have even more formats (mass market version, movie tie-in editions, etc.) and because they all have different ISBNs, they all have different sales figures. I would like to see stats that collapse across different versions of (largely) the same text (including new versions or editions of text books, and re-releases that include some special commentary, etc.)