ISBNs” Amazon vs. Bowker

  1. Amazon (KDP) Free ISBNs

Pros

  • Free and automatically assigned during setup.
  • Works perfectly within Amazon’s ecosystem — your book is fully orderable and listed on Amazon and often appears on other sites that scrape Amazon data.
  • Simple for test runs, proofs, or low-risk titles (like limited poetry runs, family memoirs, or test editions).

Cons

  • The publisher of record is “Independently published” (or “Amazon KDP”) — not Your Press Name.
  • You can’t reuse that ISBN anywhere else (like IngramSpark, a bookstore distributor, or an international print partner).
  • It flags your book as Amazon-exclusive, which bookstores, libraries, and distributors often avoid.
  • Metadata control (category, imprint, edition, price changes) is limited to what Amazon allows — you don’t “own” the record in the Books In Print database.

Bottom line:
Amazon ISBNs are fine for Amazon-only sales or prototypes. They’re not respected as industry-standard identifiers outside Amazon’s ecosystem.

  1. Bowker (or Your Country’s ISBN Agency)

Pros

  • You’re the legal publisher of record. This is essential for brand identity and credibility — especially for Chester River Press titles or anything you might submit for reviews, awards, or library collections.
  • Full control of metadata: you can list your imprint, description, keywords, and distributor info exactly how you want.
  • Universally recognized by booksellers, libraries, wholesalers (Ingram, Baker & Taylor, etc.), and international registries.
  • You can use the same ISBN across multiple distributors (Amazon, IngramSpark, etc.) as long as the edition and format are identical.

Cons

  • Bowker charges (in the U.S.):
    • $125 for one ISBN
    • $295 for ten (which is usually the smart move if you plan multiple titles or formats).
  • The interface is a bit clunky, but once you’ve set up your “Publisher Account,” it’s simple to manage.

 

  1. Hybrid Strategy (What I Recommend for You)
  • Use Bowker ISBNs for all official or wide-release titles (especially anything printed under your imprints or meant for Ingram/bookstores/libraries).
  • Use Amazon’s free ISBNs for internal projects, private client editions, proofs, or limited Amazon-only releases.