Which e-commerce innovation first allowed independent authors to self-publish e-books directly to readers, disrupting traditional publishing's gatekeeping model?

The publishing and bookselling industry has transformed dramatically with technology. From ancient libraries to modern e-readers, the way we consume literature continues to evolve. This trivia question explores a pivotal technological advancement that changed how readers discover and purchase books in the digital era. Test your knowledge of the intersection between literature and retail innovation!

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Amazon's Kindle Direct Publishing (KDP)
Apple's iBooks Author
Smashwords
Google Play Books Partner Center