Napoleon Hill(1883–1970) was anAmericanauthor who was one of the earliest producers of the modern genre ofpersonal-success literature. He became the advisor to President Franklin D. Roosevelt from 1933-36. "What the mind of man can conceive and believe, it can achieve" is one of Hill's hallmark expressions.
Think and Grow Richis a motivationalpersonal developmentandself-help bookwritten byNapoleon Hilland inspired by a suggestion by Scottish-American billionaireAndrew Carnegie. It was published in 1937 during theGreat Depression.It remains the biggest seller of Napoleon Hill's books, selling a claimed 30 million copies over the next 70 years