A Canticle for Leibowitz

I looked up a few things reading this book, such as in the title, the canticle is a musical chant. There is a lot of latin and I just skipped over it. This book won the Hugo in 1961. It is declaring the futility of war and uses a religious theme to do it. Again not a new theme but back then he must have been one of the first. Leibowitz is just your average engineer but he drew some blueprints for circuit diagrams which survived the nuclear end of civilisation. He was killed by a mob as a typical type who started this mess. He became a martyr to a new order charged with preserving any technical info that may have survived.  So 600 yar later the story is picked up and then again later still until eventually in 3781 we are back, colonising planets but also continuing the nuclear destructive cycle.       This book came from Aquinas Collage Library copy no 24 and still has the classic yellow pocket for the date stamp card on the back cover.