Voice Power

If you have any experience with your voice, don't bother with this book.

"Voice Power" has some advice that is probably good, but it's buried in a mountain of meh where the author talks about how his advice comes from admiring Elvis and how the author knows all kinds of rock stars.  

The advice in the book: breath through your belly, support your breath, let your voice resonate, emphasize (using volume, tone, elongated sounds, or silence) the things you want to emphasize, and match your audience.  And, yeah, that's good advice, but I don't need a whole book to tell me that!

That's not to say that all of the book's advice is trite.  There are plenty of suggestions that go right against common wisdom.  I just don't really believe they're good suggestions.  The author recommends things like training yourself to breathe through your mouth rather than your nose and elongating consonants to emphasize words rather than vowels.  When making these suggestions, the author appeals to anecdotes that have me thinking up counterexamples right and left.

If you don't have much experience with your voice, you would probably get more out of this book than me, but you should probably still look for a different book.