Which famous literary packaging innovation, introduced in the 2000s, allowed readers to hear the author's voice directly from the book cover?

Book packaging has evolved significantly over centuries, from simple cloth bindings to today's innovative designs that incorporate technology and sustainability. Publishers now use packaging not just as protection but as a crucial marketing tool that extends the reader's experience beyond the text itself. Test your knowledge about a groundbreaking packaging innovation that changed how readers interact with literary works.

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The Bloomsbury 'Magic Cover' for Harry Potter special editions that changed illustrations when touched
The 'Audiobook Cover' technology pioneered by Penguin Random House that included built-in audio clips accessed via touch sensors
Simon & Schuster's 'Aroma Binding' that released scents related to the book's settings when pages were turned
Harper Collins' 'Digital Dust Jacket' with embedded LED displays showing animated book trailers