I'll second someone else's recommendation for The Martian, that was just a really fun read you can just burn through because it is so enjoyable. If you want an

I'll second someone else's recommendation for The Martian, that was just a really fun read you can just burn through because it is so enjoyable. If you want another really fun read, Ready Player One was fantastic. I've also enjoyed the Old Man's War saga, there are 6 books but you can skip book 4 since it is a retelling of book 3 from the POV of another character. This is a space saga and I really like the universe he created. In the hard sci-fi genre, I really enjoyed The Forever War. And for just pure world building fantasy, the Game of Thrones books (The song of Ice and Fire series) are some of the best written books I've ever read.