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Best Sellers Rank

Listing & discoverability

Also called: BSR, sales rank

A relative popularity ranking Amazon assigns within a store and within categories. Rank 1 is the best seller in that list; the number moves with recent sales, not lifetime totals.

Best Sellers Rank is comparative, not absolute. It tells you how a book is selling relative to everything else in the same list right now, weighted towards recent activity, so a rank can improve overnight and decay just as quickly.

A book has a rank in its overall store and separate ranks in each category it sits in. Those are different numbers measuring different populations, and confusing a category rank with the overall Books rank produces wildly wrong sales estimates — a #1 in a narrow subcategory can be selling a couple of copies a day.

Any conversion from rank to sales is an estimate built on a curve fitted to observed data, not a figure Amazon publishes. Treat it as an order-of-magnitude read, useful for comparing books and useless for forecasting revenue precisely.

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SmartKDP is not affiliated with, endorsed by, or sponsored by Amazon. Amazon, Kindle, and Kindle Direct Publishing are trademarks of Amazon.com, Inc. or its affiliates.

Related terms

  • ASIN

    The ten-character identifier Amazon assigns to every product in its catalog, including every book. It appears in the product URL and is how most Amazon tools refer to a title.

  • BISAC code

    A standardised subject classification used across the book trade. KDP maps the BISAC categories you choose onto the browse categories readers actually see on Amazon.

  • Series page

    A single Amazon page collecting every book in a series, letting readers see the reading order and buy the next instalment without searching again.