I am rating the Kindle edition of this text book. Excellent. No more heavy books to carry, easy to use, and I am able to bookmark each diagram without having to flip through each page to find them. Vertical view isn't that great (for me) and requires zoom to read, but I have a standing case and read it propped up horizontally. I can go to a certain page, chapter, or section in seconds, and I can add notes if I forget to bring my paper and pen to class. It's worth the few extra dollars to rent this digital edition, and no more worries about whether the book will be bought back or not if the school changes editions.