How we calculate a books commercial success (E.g. number of sales)
Book sales are notoriously difficult to find online. In fact it’s pretty much impossible.
Instead we use a basic spreadsheet for tracking the number of reviews a book receieves on Amazon & Goodreads.
Our theory is the number of reviews (not the score, but the number of people who left any kind of review) gives us a rough indicator of the books commercial popularity. We take this overall score and put in 3 categories.
- Below average
- Highly successful
This system is very much a work in progress and will likely be refined as we go.
You can find a view only copy of our spreadsheet here: https://docs.google.com/spreadsheets/d/1uBo8-BMaMrp9P5lQuNHPAZFVk8iLWzqQCo30aYbtQhU/edit?usp=sharing