This time, we'll discuss the second book in the Dune series, Dune Messiah.
If you need a refresher on Dune without reading the first book, you have plenty of options**:**
Movies:
This link will show you where to watch Dune Part One or David Lynch's 1984 version of Dune:
https://www.justwatch.com/us/search?q=dune
Miniseries:
There is also the Dune Mini-series from 2000 - available on DVD. Not sure where to stream it now.
Hoopla:
If you have Hoopla, you could use your library card to check out the Frank Herbert's Dune graphic novels.
Wikipedia:
Or you could read the Wikipedia summary of the Dune plot:
https://en.wikipedia.org/wiki/Dune_(novel)
This is the basis for Dune Part 3 from Denis Villeneuve that is coming out in December.