Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not worth it

This book is full of multi-part problems that take a lot of time. Many state in the problem one hour limit. While it's good to do review of the topics, nothing like this is on the test and it takes WAY too long to do these problems. I used it for a week and tossed it on the shelf. Six minute solutions are MUCH better- more realistic problems, more realistic time frames for problems. Definitely would not recommend this book.