Dale Carnegie Dale Carnegie Dale Harbison Carnegie (; spelled Carnagey until c. 1922; November 24, 1888 – November 1, 1955) was an American writer and lecturer and the developer of famous 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. One of the core ideas in his books is that it is possible to
What Engineers Know and How They Know It What Engineers Know and How They Know It What Engineers Know and How they Know It: Analytical Studies from Aeronautical History (The Johns Hopkins University Press, 1990) () is a historical reflection on engineering practice in US aeronautics from 1908 to 1953 written by an accomplished practitioner and instructor. This period represents the dawn of aviation which was fraught with uncertainties and numerous paths to many possible worlds. The book captures two main conclusions from this period. The first order conclusion of this book is about "what engineers know." Five case studies from the history of aeronautical engineering are used