. . . . . . . . . . . . . . . "55854255"^^ . . . . . . . . . . . . . . . . . . . . . . . . "16288"^^ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "1109875575"^^ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "As of 2018, several firms in the United States rank among the world's biggest publishers of books in terms of revenue: Cengage Learning, HarperCollins, Houghton Mifflin Harcourt, McGraw-Hill Education, Scholastic, Simon & Schuster, and Wiley."@en . . . . . . . . . . . . . . . . . . . "Books in the United States"@en . . . . "As of 2018, several firms in the United States rank among the world's biggest publishers of books in terms of revenue: Cengage Learning, HarperCollins, Houghton Mifflin Harcourt, McGraw-Hill Education, Scholastic, Simon & Schuster, and Wiley."@en . . . . . . . . . . . . . .