Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Execellent Book for any Learner

I used this book to help me understand the complex nature of excel. This book is a topical guide that walks you through step by step many subject basics. As the book advances, the less stepping stones are given. Because the author removes these 'stepping stones' it requires the user to develop thoughts and arrays within their own mind. Much of Excel is a self taught program, as professional users claim, that still truly challenges the Masters of Excel all over the world. The author was very helpful when I was deep in trouble. Courteous, timely, and acurrate. The best purchase you'll ever make.-Dean Prinsloo