Bests & Worsts Reviews from Amazon

I am one of the authors of this book. Because Amazon no longer provides a "Reply" button on reviews, I am writing this review to counter a point made in other reviews that say that the fourth edition of Introduction to Algorithms is essentially the same as the third edition. I know this book better than anyone else on the planet, and the fourth edition is NOT the same as the third edition. I can see where you might think that if you compare the tables of contents. Or instead you could read the preface of the fourth edition, where we lay out in detail the changes we made in the fourth edition in 23 distinct bullet points describing global changes throughout the book and specific changes to chapters and sections. We worked on the fourth edition for several years. We would not have needed to do that if it were just "the third edition with color." I heartily suggest that reviewers actually READ the book before passing judgement on whether it's the same as the third edition. [Apologies for giving 5 stars. I had to give an overall rating, and in my humble and biased opinion, yeah, it deserves 5 stars.]