Which innovative book packaging approach from the 1930s revolutionized publishing by making quality literature more affordable and accessible to the masses?

Book packaging and cover design has played a crucial role in literature's commercial success throughout history. From iconic dust jackets to revolutionary paperback designs, the visual presentation of books has often determined their market reach and cultural impact. This trivia tests your knowledge of influential book packaging innovations that changed the publishing landscape and helped define literary movements.

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Penguin Books' color-coded paperbacks with uniform design
Random House's leather-bound collector's editions
Harper Collins' embossed hardcover series
Simon & Schuster's illustrated dust jackets