Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I'm concerned about the relevancy!

Although the book gives a lot of helpful tips about organizational development, I find it kinda irrelevant reading. Thus, I read the first edition of the book and checked what's been changed in this new edition. However, it seems like there is nothing new with newer editions except the book cover :) It's like joke! How come a professor doesn't change his opinion or suggestions 10 years later? Only read the final section of the book and see 10 years earlier edition, it has the same recommendations!