Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Informative yet Brief

This book was quite informative though it was rather brief. It did not go into any detail about any particular subject--instead it provides a broad overview. Yet I actually found the general brevity to be in good taste, I did not think it left any gaps in reasoning that were to gaping and so I could easily follow along. Bits of it were interesting, but as any good textbook there were just as many boring bits. The format is comprehensible, it is well-structured, and it is easy to read.