This book is labeled as one of science fiction's greatest masterpieces - it is a label well deserved. Frank Herbert's tale of revenge, politics, culture, ecology and religion is of a caliber that hasn't been seen in a long time.
The most notable evidence for this book's classic nature is how it reads - though it was published many decades ago, the language and settings read as though they were invented just last week. The characters are powerful and moving while still maintaining a healthy sense of reality; the locales are presented in a manner that easily depicts them in the mind's eye; and though the story can be a tad confusing at times, the overall theme of love, revenge, and fulfilled prophecy is staggeringly good.
A MUST read for science fiction lovers.