Amazon Book Research Helper is a free Chrome extension developed by Terminal Publishing. This extension aims to provide users with quick and convenient access to important information about books listed on Amazon.

With Amazon Book Research Helper, users no longer have to scroll through lengthy book listings to find key details. The extension adds at-a-glance information at the top of the page, reducing the need for extensive scrolling.

Key features of Amazon Book Research Helper include the ability to indicate if a book is self-published, display book rank, rating, reviews, age in weeks, and ratio (number of reviews divided by age in weeks). Additionally, the extension shows page count and estimated word count, as well as file size for Kindle books.

The extension also incorporates Chris Fox's "tiers" to show book rank, and provides quick links to sales calculators for additional sales data and price and rank history. Furthermore, users have the option to expand the extension to view the author's rank in all categories.