Earnestly Speaking: An excellent book on speech communication

This may or may not be the most comprehensive book on speech communication. I have read and searched through several libraries to find one that satisfies my appetite, but found none. Therefore, it gives me great pleasure to write the one which I believe can fill the void.Public speaking is so dynamic with the style of speaking changing according to the timesand needs of the listeners. Every speaker is different, and even the listeners are different. They vary from culture to culture, from country to country.Most books on public speaking are published in the United States for Americans. Yet these books are widely sold and read by readers all over the world. This is also a unique way of exporting American culture to the East.