The whole story was spanning six books, plus the encyclopedia.
However, the thickest one was the first, original "dune" novel.
I read through them all, but "dune" was the one i could barely stop reading, i also watched the movie beforehand.
epic.
Read all of six of the Dune series books and enjoyed them immensely even though yes they were a bit long.
Wow, you guys are epic readers. In college and graduate school I had to read so many god damn textbooks and journal articles that I completely gave up on fiction. Felt like I simply didn't have time for it, and that sentiment ingrained itself into my life and has continued until now, even though its not applicable anymore.
Should probably try reading fiction again to widen the breadth of my vocabulary a bit.