Oliver Napoleon Hill was an American self-help author and conman. He is best known for his book Think and Grow Rich (1937), which is among the best-selling self-help books of all time. Hill's works in…
Rhonda Byrne is an Australian television writer and producer, best known for her New Thought works, The Secret—a book and a film by the same name. By the Spring of 2007 the book had sold almost 4 mill…
