Dune

A classic that’s worth the hype. Incredibly in-depth world building (maybe check out the appendix of terms when needed), with extensive religious and sociological elements that clearly draw from a wide-ranging knowledge of actual religious practices. But with some crazy out-there prophetic stuff, drug use, drama, betrayal, knife fights, wild tech, machines, planet/creatures… this book has been around for a while and there’s a reason it’s a classic. Just read it.