Which major publishing merger in 2013 created what was then the world's largest book publisher, bringing together iconic literary imprints like Knopf, Doubleday, and Viking?

The publishing industry has seen significant consolidation over the decades, with major houses merging to form powerful conglomerates that control large portions of the book market. These strategic brand mergers have reshaped how authors are published and how readers discover books. Test your knowledge about one of the most significant publishing mergers in recent literary history!

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Penguin Random House (merger of Penguin Group and Random House)
HarperCollins Hachette (merger of HarperCollins and Hachette Book Group)
Simon & Macmillan (merger of Simon & Schuster and Macmillan Publishers)
Scholastic Pearson (merger of Scholastic and Pearson Education)