The details · Amazon
Your Amazon rank can drop even when your sales don't.
Other books selling moves it too.
- From
- Case study · CS-002 · September 28, 2026
“Rankings are relative, so your Sales Rank can change even when your book's level of activity stays the same.”
What I found
Amazon: "Rankings are relative, so your Sales Rank can change even when your book's level of activity stays the same." Amazon also says rank "is not an accurate way to track your book's activity."
So do this
Before you worry about a drop, check your sales report: orders, and pages read if you're in Kindle Unlimited.
Source: What Amazon actually tells authorsCS3-124
Read the full case studyI read eight Amazon algorithm guides. Here are two top factors, and the short list Amazon actually publishesWhat Amazon tells authors in its own words, what "we modeled it" really means, and the test model I'm building instead.Case study · CS-002 · 8 min read · 9 posts come from it