This sequel is an amazing addition to the Dune series. I have ready that people are more or less polarized on this novel, and should that be the case I am on the backing side. I felt like this book began to delve into the more philosophical and humanistic effects of prescience, as well as the darker side of a semi-tyrannical empire. Herbert does an excellent job of leaving clues all throughout the text; upon re-reading this rather short book, I was able to absorb so much more. Additionally, Herbert is such a good wordsmith that I have myriad quotes in this book highlighted. Sometimes his pre-chapter passages can be confusing, but many of the profound character-thoughts are exactly that: thought provoking. I would urge everyone to read this book, although it requires the investment of reading the first!