How to Win Friends and Influence People market the book, Shimkin decided to send 500 copies of the book to former graduates of the Dale Carnegie Course, with a note that pointed out the utility of the book for refreshing students with the advice they had learned. The 500 mailed copies brought orders for over 5,000 more copies of the book and Simon & Schuster had to increase the original print order of 1,200 quickly. Shimkin also ran a full page ad in the "New York Times" complete with quotes by Andrew Carnegie and John D. Rockefeller on the importance of human relations. Originally published in November
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