Frank Bettger was an American author, salesman, and lecturer who lived from February 15, 1888 to November 27, 1981. Before becoming an author, Bettger played professional baseball for a short time, but his career ended due to an injury. He is best known for his classic sales book "How I Raised Myself from Failure to Success in Selling," which details his experiences and the sales techniques that helped him improve his career. The book, first published in 1947, has since been regarded as one of the most helpful manuals on selling and personal development. Bettger's approach to sales emphasized enthusiasm, the importance of knowing your product, and the necessity of setting clear goals. He was influenced and encouraged by Dale Carnegie, and his writings often reflect Carnegie's principles of self-improvement and effective interpersonal communication.