Horatio Alger Jr. was an American author who wrote young adult novels about impoverished boys and their rise from humble backgrounds to middle-class security and comfort through good works. His writings were characterized by the "rags-to-riches" narrative, which had a formative effect on the United States from 1868 through to his death in 1899.

Rags to riches refers to any situation in which a person rises from poverty to wealth, and in some cases from absolute obscurity to heights of fame, fortune and celebrity—sometimes instantly. This is a common archetype in literature and popular culture, such as the writings of Horatio Alger, Jr.