Barnes & Noble’s Nook sales are also a mystery. While sales have waned in the past year, the Nook Tablet continues to be their best seller.
The Kobo also sells well, especially in Canada, and boasts many varieties, including a tablet.
The Apple iPad (and iPad Mini and iPad Air) lead the way with over 170 million units sold.
What does this mean for an author? Obviously, you want your books available as e-books, but you also want them available on as many platforms as possible.
Keep those numbers in mind next time you intend to upload a book Don’t limit your options!