Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not a good tool in language learning

First of all, the use of the word "tópicos," which in Spanish is more commonly used to mean clichés, makes me feel uneasy about the validity of this book. The word should have been "temas," which is a more standard way to refer to "topics."I would not recommend this book. The readings are too basic and even limiting. Instead of reading texts on terrorism, for instance, written my the makers of the book, I would have liked to seen the implementation of "realia" (texts coming from the real world, news, etc.).