Reader's Digest is an American general-interest family magazine, published ten times a year. Formerly based in Chappaqua, New York, it is now headquartered in midtown Manhattan. The magazine was founded in 1922 by DeWitt Wallace and his wife Lila Bell Wallace. For many years, Reader's Digest was the best-selling consumer magazine in the United States; it lost the distinction in 2009 to Better Homes and Gardens. According to Mediamark Research (2006), Reader's Digest reached more readers with household incomes of over $100,000 than Fortune, The Wall Street Journal, Business Week, and Inc. combined.

Global editions of Reader's Digest reach an additional 40 million people in more than 70 countries, via 49 editions in 21 languages. The periodical has a global circulation of 10.5 million, making it the largest paid-circulation magazine in the world.[citation needed][when?]

It is also published in Braille, digital, audio, and a large type called "Reader's Digest Large Print." The magazine is compact, with its pages roughly half the size of most American magazines. Hence, in the summer of 2005, the U.S. edition adopted the slogan "America in your pocket." In January 2008, it was changed to "Life well shared."