Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent Book, highly practical and simple, with great real life examples!

This book is unique, highly practical, very well written and very entertaining to read. Even if you dont speak for a living, you can find this book very, very helpfull to improve communication skills, be in control when speaking, and when facing tough or hostile questioning, always reach to your own strenghts and capabilities to answer, not focusing in the negativity of the questions.I HIGHLY, recommend this book to ANYONE, specially those in search to improve their skills in comunication in professional environments.