Which packaging innovation, introduced in the 1930s, revolutionized the book industry by allowing publishers to create affordable, visually striking covers that became iconic in 20th century literature?

The publishing industry has seen numerous innovations in how books are presented to consumers. From the earliest dust jackets to modern interactive covers with augmented reality features, packaging in literature has evolved dramatically to capture readers' attention in increasingly competitive retail environments. This trivia tests your knowledge about a revolutionary packaging innovation that changed how we experience and market books.

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Paperback book with glued bindings and illustrated covers
Hardcover books with removable dust jackets featuring author photographs
Leather-bound limited editions with gold leaf embossing
Cloth-bound books with screen-printed cover designs