A Canticle for Leibowitz, venerated science fiction masterpiece

This book influenced me to (1) become an archivist and (2) write my own version of the “Last Monastery/Library on Earth” – or at least imagine it in my head. I agree with the criticisms of the 3rd part which to me felt like it would never. ever. end. However, the first two parts more than make up for that weakness, and anyway you can always use Nancy Pearl’s “Rule of Fifty” to bail before you get bored. http://nancypearlbooks.wordpress.com/pearlisms/