Instruct: Classify Amazon reviews into positive or negative sentiment
Query: great collection

This book is friendly reading, and excellent collection. Though the humanoid robot had skyrocket change, compared with 2005. Most of the book are up to day.I also agreed that this book is a review, and lack of detail. Anyway, it is impossible for "one book" to packed too much math or engineering detail in. Thus I still recommended this book for under-graduated school, or others who is newbie.