Normal Vincent PealeNorman Vincent Peale (1898–1993) was an American Protestant clergyman and author, best known for his landmark book The Power of Positive Thinking (1952), which popularized the idea that optimism and faith could transform lives. His preachingand writing emphasized faith, optimism, and self-confidence, influencing millions worldwide. He remains one of the most widely read inspirational authors of the 20th century. Read More Read Less