Also couldn't find on your page where you source the "top books" from. These are just affiliate links (completely okay with it) and don't show statistics why this is a top book.
It's a static list ordered by the number of mentions of all time. I plan to make this dynamic in the future and allow ordering by total score and filtering by time range. Also, I'd like to add separate pages for each book showing the stats and reviews, and maybe some form of sentiment analysis would be cool.