The book was first published during the Great Depression. At the time of Hill’s death in 1970, Think and Grow Rich had sold more than 20 million copies and by 2011 over 70 million copies had been sold worldwide. It remains the biggest seller of Napoleon Hill’s books.
It is not surprising. More than 70 years after its first publication, Hill’s lessons are as timely as ever. In Think and Grow Rich! he has divided them into 13 principles to be mastered: Desire, Faith, Auto-suggestion, Specialized knowledge, Imagination, Organized planning, Decision, Persistence, the Power of the mastermind, the Mystery of sex transmutation, the Subconscious mind, the Brain, and the Sixth sense.