Do you need an ISBN to self-publish an ebook?
The short answer: no, you don't need an ISBN to sell an ebook on most platforms. The longer answer depends on how widely you want to distribute and how you like to keep records.
What an ISBN actually does
An ISBN is a unique identifier for a specific edition of a book. It helps libraries, retailers, and bibliographic databases track and reference your title. For a single-store ebook it's optional; for wide print distribution it's effectively required.
Your options on Ebokio
Ebokio doesn't force an ISBN. Free authors can bring their own ISBN or skip it (the store assigns an internal identifier so your book still sells and tracks correctly). Premium authors get a free ISBN per title, registered to their pen name, if they want one.
- Skip it — fine for ebook-only, single-store selling
- Bring your own — if you already bought ISBNs
- Get a free one on Premium — if you want the formal record
When you should get one
Get an ISBN if you plan to distribute to libraries, want a clean bibliographic record, or intend to release a print edition later. If you're publishing an ebook to a single storefront and want to move fast, you can launch without one and add it later.