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This book is an excellent source of improving the public speaking skills. The author talks about a lot of fine aspects of public speaking that'll help everyone grow as a speaker. For instance, he discusses about pitch, pace, pause, inflection and emphasis as separate chapters. Analyzing our speeches at such a microlevel will certainly enlighten us about our own speaking methods and enable us to make choices about the content and style that is suitable to ourselves.
I would say it's not one of the best book to read on public speaking.The language used brings down its rating for me. The headlines and chapters heading are correct and what is required to excel in public speaking,but the explanation for that where it suffers. You can avoid buying it if you are just starting in public speaking.
The book covers a wide variety of topics and is a decent resource for teaching. However, given the subject matter, it is written in a remarkably unengaging way. It was sort-of useful but I would hesitate to recommend this to anyone.