alt Hacker NewsPretty common for authors to get people to pre-order their books so when they go on sale they top the chart for that day (the book's release day) in their category.
Pretty common for authors to get people to pre-order their books so when they go on sale they top the chart for that day (the book's release day) in their category.
Not even just for their category. "NYT bestsellers" has been manipulated like this since inception.