Amazon Book Research Helper 作成者: Terminal Publishing

Adds at-a-glance information to the top of Amazon book listings to reduce scrolling.

- Shows "Self Published" if the book was self published
- Shows rank, rating, reviews, age in weeks, and reviews-per-week ratio
- Shows page count and estimated word count
- Shows file size for Kindle books
- Shows rank using Chris Fox's "tiers"
- Quick links to sales calculators for additional sales data and price and rank history
- Can expand to show author's rank in all categories

This extension is open-source: https://github.com/statico/amazon-research-helper