* No central authority tracks downloads: Unlike physical books, there isn't a single organization that keeps track of all e-book downloads across all platforms.
* Different platforms have different data: Amazon, Kobo, Apple Books, and other platforms have their own download numbers, and they don't share this information publicly.
* Public domain books are widely available: Many classic books are in the public domain and are freely available for download on various websites. This makes tracking their downloads virtually impossible.
However, some popular contenders for the most downloaded e-book include:
* "The Hunger Games" by Suzanne Collins: This young adult dystopian novel was a huge bestseller and has been widely available as an e-book.
* "The Girl with the Dragon Tattoo" by Stieg Larsson: This crime fiction novel was a global phenomenon and has been translated into numerous languages, making it available to a vast audience.
* "Fifty Shades of Grey" by E. L. James: This erotic novel was a cultural sensation and sold millions of copies in both print and digital formats.
* "The Da Vinci Code" by Dan Brown: This thriller novel was a massive bestseller and sparked widespread discussion about its historical and religious themes.
* "Harry Potter and the Sorcerer's Stone" by J. K. Rowling: This fantasy novel is one of the most popular books of all time and has been widely downloaded as an e-book.
While these are just a few examples, the true answer to the question of the most downloaded e-book remains elusive.