Dale Carnegie ( KAR-nig-ee; spelled Carnagey until c. 1922; November 24, 1888 – November 1, 1955) was an American writer and teacher of courses in self-improvement, salesmanship, corporate training, public speaking, and interpersonal skills. Born into poverty on a farm in Missouri, he was the author of How to Win Friends and Influence People (1936), a bestseller that remains popular today. He also wrote How to Stop Worrying and Start Living (1948), Lincoln the Unknown (1932), and several other books.
https://en.wikipedia.org/wiki/Dale_Carnegie