KDP Select means enrolling your ebook exclusively with Amazon for renewable 90-day terms, in exchange for access to Kindle Unlimited and Amazon's promotional tools; going wide means distributing your ebook across multiple retailers simultaneously, trading that exclusivity for broader reach. This is one of the most debated decisions in self-publishing, and the right answer genuinely depends on your genre and goals.
This is part of the Complete Guide to Self-Publishing. Program terms described here are accurate as researched but can change; confirm current terms directly with Amazon KDP before enrolling.
Enrolling an ebook in KDP Select means that ebook cannot be sold or given away, even for free, anywhere other than Amazon for a 90-day term. This applies only to the ebook edition; print and audiobook formats are unaffected and can be distributed anywhere regardless of your ebook's Select status. The term auto-renews unless you turn off auto-renewal before it ends.
The headline benefit is Kindle Unlimited (KU) access: your book becomes available to KU subscribers, who read it as part of their subscription rather than buying it outright, and you're paid per page read from a shared monthly fund rather than a per-sale royalty. Select also unlocks Kindle Countdown Deals, allowing time-limited discounted pricing while keeping the higher royalty tier, and Free Book Promotions, which let you offer your ebook free for a limited number of days per enrollment term, useful for visibility, downloads, and reviews.
Going wide means availability on other retailers, including Apple Books, Kobo, Barnes & Noble, Google Play, and others, reaching readers who don't shop on Amazon at all. It also generally means library availability, since some library ebook services aren't accessible to Select-exclusive titles. And it means no dependency on a single platform: your income and visibility aren't tied entirely to Amazon's algorithm and policies.
KU page-read income tends to matter most in genres with heavy Kindle Unlimited readership, romance, fantasy, and thriller are commonly cited as strong fits, especially for authors with a backlist that keeps readers subscribed and reading. In genres where readers are more likely to buy outright than subscribe, literary fiction and much nonfiction among them, KDP Select's core benefit matters less, and wide distribution's broader reach may pay off more.
Going wide also takes time to pay off. Building visibility and rankings on each new retailer happens gradually, and a new wide release commonly looks weaker than an established KDP Select title in its first few months simply because the other platforms haven't had time to build momentum.
Many authors start in KDP Select for a book's first one or two 90-day terms, taking advantage of the promotional tools while sales and reviews build, then switch to wide distribution once early momentum is established, if wide reach becomes the priority. You're free to change strategies between terms; you just need to let a current Select term finish before distributing that ebook elsewhere.
Turn off auto-renewal before a term ends if you intend to test wide distribution, or you'll be locked in for another 90 days. You cannot distribute a Select-enrolled ebook wide during its term, even accidentally; doing so risks removal from the program. Free samples and excerpts on your own site are generally fine even during a Select term, but giving away the full ebook is not. And this decision applies per book, not per author, so you can have some titles in Select and others wide at the same time.
Deciding on Your Distribution Strategy?
Entrada Publishing can help you think through distribution decisions as part of preparing your book for publication.
No. KDP Select exclusivity applies only to the ebook edition. Print and audiobook formats can be distributed anywhere regardless of your ebook's Select status.
Yes, but only between 90-day terms. You can't distribute a Select-enrolled ebook elsewhere during an active term, but you can choose not to renew and go wide once the current term ends.
Neither is universally better. It depends heavily on genre (KU-heavy genres like romance and fantasy often benefit more from Select) and your goals (library and retailer reach beyond Amazon favors going wide).
No. Many authors start in Select for the first term or two, then reassess and potentially switch to wide distribution based on how the book performs.