Which groundbreaking book packaging innovation of the 1930s was specifically designed to make literature more accessible to soldiers during World War II?

In the world of arts and literature, product packaging isn't just about protection—it's an art form itself. Throughout history, publishers have developed innovative packaging solutions that changed how we interact with books and literary products. This trivia question explores a groundbreaking packaging innovation that revolutionized access to literature for a specific audience. Test your knowledge of how packaging design intersects with literary history!

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Armed Services Editions (ASEs) - compact paperbacks designed to fit in military uniform pockets
Folio Society Slipcases - protective hardcover boxes with military-grade materials
Waterproof Dust Jackets - waxed paper covers for protection in trench warfare
Collapsible Library Cases - fold-flat wooden book containers for transport ships