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The information in this book has been verified and applied very successfully because more than a million students participate in the course of Dle Carnegie. "The Human heart by the art of speech" contains a lot of wisdom advice, many wise rules to help us win fear and become more confident. Besides these rules are very useful suggestions and techniques to help everyone build their ability to speak effectively, in front of one person or a crowd. Listener Details: Issuer: NDBOOKS Publisher: Phuong Dong Publishing House Size: 13.5x20.5 cm Author: Thomas Paul Pages: 160 Year of publication: 2021