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.
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.
Source: Wikipedia "Dale Carnegie" · CC BY-SA 4.0
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