I don’t think I would have read this if I hadn’t picked up a six book digital collection - all the Dune books written by the original author. So it was too easy to finish the last one and move on to this. I usually hate introductions and prefaces that spoil the books but this had some insight from Frank’s son Brian - who has continued the series after his father’s death - and it was actually good to get a bit of context around this and made the reading of it much easier.