Which major publishing house was formed in 2013 through a merger that created the world's largest book publisher, bringing together imprints like Knopf, Crown, and Vintage?

The publishing industry has undergone dramatic transformations over decades, with major companies shaping how we consume literature. From small family businesses to global conglomerates, publishing houses have fascinating corporate histories. Test your knowledge about the business side of the literary world and how these companies have evolved to dominate bookshelves worldwide.

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Penguin Random House
HarperCollins Publishers
Simon & Schuster
Hachette Book Group