Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Warren Buffett - deja vu

Mary Buffett's second book on her former father-in-law's investment techniques is a big disappointment. Most of the chapters in this second books are a complete re-write of her first offering.Each chapter ends with a few rather simplistic questions, and a review of each chapter "key points". Many if not all of the same mistakes - both financial and grammatical are repeated in this second book.Unlike her first book - Buffettology - Mary Buffett does include a few case studies at the end of the book as they relate to actual stock purchases by Warren Buffett.Beginner and serious devotees of Warren Buffett's investment style are better served with her first book, or better still by reading Warren Buffett's letters to shareholders or any of the other fine books on the same subject matter. Investors can skip this workbook.