In matters of privacy, this book meets.
In matters of working life, it intervenes when it comes to communication, negotiation, diplomacy, sensitivity, tact, assertiveness in harmony with his interlocutor, strategy win - win.
This book is lung optimism.
For all the shy, introverted, this book is useful.
But even for those who think to be doing quite well, but who want to work in detail the art of conversation, this book is an impressive amount of detail to apply and very helpful.
When one is strenuous work, simplicity, seeking appeasement and peace, this book is a good vehicle.
It takes time to apply all the advice, and return not to forget a detail already acquired when you want to apply other.