Which innovative packaging design approach did Vintage Books use for their 2013 edition of George Orwell's '1984' that directly connected to the novel's themes?

The world of publishing has seen remarkable innovations in how books are presented to consumers. Beyond just covers, packaging design in the literary world has evolved to create memorable unboxing experiences, limited editions, and collector's items that enhance the reader's connection to the work. This poll tests your knowledge about a groundbreaking packaging design that revolutionized how we experience certain literary classics.

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A cover that revealed hidden text when heated, representing the novel's themes of hidden truth and surveillance
Pages that gradually faded to white as readers progressed through the book, symbolizing the erasure of history
A dust jacket made from material that dissolved after first handling, representing the impermanence of truth
A cover with an embedded microphone that lit up when detecting conversation, emphasizing the surveillance state