All the points are obvious, but in real life we forget, communicate badly, and then make a bad situation worse. This book has the sort of information that someone gives you when they say, "In that situation I always do . . ." and you could hit yourself for not thinking of it at the time. If you read and re-read this book you'll begin to have these ideas when you need them, not afterward.
The tip formula is excellent. Too many books try to put ideas across in ordinary text and become confusing and unclear. Each tip and its supporting text is complete. You won't be left wondering what the author meant.
I teach people to make presentations and there is plenty here I intend to pass along. My order is in for Booher's forthcoming "Speak With Confidence," because if it's even half as good as this book, it will be invaluable.
One last thought. Think about the times you didn't communicate that well. Think about the stress, the bad relations with other people, and all the negative things that resulted. Now look at the price of this book. Isn't it worth that price just to communicate effectively one time, let alone all the times this book will save the day?