ISBN applies to particular editions / formats on paper of the source of the content, so more than one per Gutenberg text. An ebook can have an ISBN. But it's not relevant to ebooks from Gutenberg or Amazon.
The ISBN is used by retailers (or the public) to order a specific version of book. Library programs can store an ISBN, but should be using a unique per copy ID (barcode, QRcode or RFID etc) that isn't EAN/ISBN type of barcode on the book.
Genres are subjective and not all published works have an officially assigned genre.
Either use Gutenberg or a professional Library program.
Also titles are not at all unique. There is no copyright on book titles. I've two unrelated books called "Dancer's Luck".
Last edited by Quoth; 03-26-2021 at 12:40 PM.
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