تصاميم قناة فوائد قرآنية
How to Win Friends and Influence People?
Dale Carnegie 1888-1955
This book was published in 1936. Over 30 million copies have been sold worldwide. In 1981, a revised edition containing updated language and anecdotes was released. The revised edition reduced the number of sections to four, eliminating sections on effective business letters and improving marital satisfaction.