How does BookTrakr work?

Every night, BookTrakr automatically logs into your store accounts in much the same way you would and downloads your sales reports. It then converts these raw reports into a common format so that numbers from different stores and countries can be compared and combined. It also visits the web pages for each of your books to extract its reviews, ratings, and rankings, and scours the bookstores' bestseller lists looking for BookTrakr users' books. 

This is all done completely automatically; no human ever uses your account data.