I'm about to read Mentats of Dune. It's the only book I haven't read. I forgot to mention Herbert's 'Ship' series starting with the Dosadi Experiment. They were also wonderful. So far dramatizations of Dune have been pretty weak. Hopefully the movie is a lot better.
The Lynch movie... was a thing. I rather liked the SF miniseries despite the low quality due to the budget.
I loved, and still do, Lynchs movie. I really don't understand why he disowned it! It has got all the right vines as far as I am concerned.