I hate this book. Maybe it's just because I hate biochemistry. I found certain chapters better than others. I think what makes a quality textbook is the ability for any reader to understand what the authors are saying, even if they have no education in the subject. That's where I believe they failed. Some chapters I was like hey this isn't so bad while in others I had to re-read things several times just to understand their point. We get it, you're smart.. why do authors insist on making them a puzzle to understand.