Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Solid book but.......

This is a really good book for someone who is invloved in the subject, otherwise it is a readers nightmare, I lost count on the times the author writes " but not have been fully understood"...all he does in Ch4 and Ch5 is tell you what someone designed and what they achieved, it is like he copied and pasted technical journal papers into this book, I would not advice anyone on buying it, hard work have been put in it, but it is still a BAD book.....consider LEDs by schubert.....