Which major publishing merger in 2013 created the world's largest book publisher, bringing together iconic literary imprints like Knopf, Doubleday, and Viking under one corporate umbrella?

The world of publishing has seen significant consolidation over the decades, with major mergers reshaping the literary landscape. These corporate unions have impacted everything from author contracts to book distribution, creating powerful conglomerates that control substantial portions of what we read. Test your knowledge about one of the most significant publishing mergers in recent history that dramatically altered the arts and literature industry.

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Penguin Random House (Bertelsmann and Pearson merger)
HarperCollins Hachette (News Corp and Lagardère merger)
Simon & Schuster Macmillan (CBS and Holtzbrinck merger)
Bloomsbury Scholastic (Harry Potter publishers strategic combination)