DALE CARNEGIE 
The art of public speaking (translated) [EPUB ebook] 

The best way to become a confident and effective public speaker, according to the authors of this seminal book, is simply to do it. Practice, practice, practice. And while you're at it, hire the positive. You have something to say. Forget the self. Cast out the fear. Let yourself be absorbed by your subject. And, above all, expect success. 'If you believe you will fail, ' they write, 'there is hope for you. Wish.'