Although I read A Canticle for Leibowitz a years ago, it has stuck with me and I have recommended it many times. One of my favorite post-apocalyptic reads. Monks who survived the nuclear holocaust were the protectors and preservers of the little scientific knowledge that remained. We jump through time and see civilization take root and jump again and see we might just end up where the monks began. The novel does have religious overtones but it is not a proselytistic story. I plan on reading this again just to make sure I am remembering it right. But I do know it was a great read.