Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good collection of concepts

This book has a very good collection of most of the concepts related to RFID and is very useful especially for beginners in RFID. I gave only 4 stars as I was dissappointed not to see any examples for any or almost all the concepts explained. For what it costs, I think it makes sense to add some examples liked to some important concepts.