Anathem

This is actually one of my favorite books of all time. The plot is compelling, the science is interesting, but above all else, the worldbuilding is genuinely really, really interesting! It's just strange enough to be alien, but in writing so, Stephenson makes a world that's both very easy to imagine and also very rewarding to explore. If you like worldbuilding, then this is a good book for you. Science and math take center stage as well, with several actual proofs included in the novel, though broken out into appendices in case you want to skip over the details (and pictures). That said, I feel that the primary purpose of all the technical mumbo jumbo is effectively turned into just another way of fleshing out mathic culture, and makes it feel remarkably complete. And if you liked the final scene of 2001, just wait for the final scene of Anathem! Negative-wise... it's a Neil Stephenson book. It's long, there's a lot of description, and the plot is somewhat convoluted. Some aspects of the worldbuilding are clearly just jabs at our world. And (on the face of it, anyway) some worldbuilding elements may seem... remarkably derivative. Also, because I don't want to leave it out: Stephenson writes women in a way that isn't distinctly terrible, but there are still a few painful points here and there, especially to do with the protagonist's love interest. It's better than Tekla in Seveneves, but it's not incredible. For what it's worth, though, I don't think anybody would find this aspect of the book disqualifying, and encourage you to read it anyway. Anyway, this book is great. Like I said, it's one of my favorites. It might not be for everybody, but I'm still going to say it: pick it up, and see if you like it!