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.[nb 1]
Popular books in the 19th century included Sheldon's In His Steps (1896). 20th century bestsellers included Mitchell's Gone with the Wind (1936), Carnegie's How to Win Friends and Influence People (1937), Spock's Common Sense Book of Baby and Child Care (1946), Harris' I'm OK - You're OK (1969), Woodward and Bernstein's All the President's Men (1974). Recent bestsellers have included Warren's Purpose-Driven Life (2002) and Brown's Da Vinci Code (2003).
Some notable collections of books of the United States include:
The nonprofit Internet Archive began scanning books in 2004, in the same year that Google Inc. launched Google Book Search. In 2005, Google began scanning pages of volumes in several large research libraries in the US, as part of its new Google Books Library Project. The Open Content Alliance formed in 2005.
Database and search engine built upon the circulation records of the Muncie (Indiana) Public Library from 1891 to 1902