The Art of Public Speaking

This book is among the all-time classics of the self-help genre. Not only does the book impart the skills of fine public speaking, but also introduces the other benefits one gains from being a skilled public speaker.  
 
"The efficiency of a book is like that of a man, in one important respect: its attitude toward its subject is the first source of its power. A book may be full of good ideas well expressed, but if its writer views his subject from the wrong angle even his excellent advice may prove to be ineffective."