I discovered Buckley in my teens when I was reading all sorts of spy novels. Buckley wrote a series of books with a CIA agent, Blackford Oakes, as the main character. They were fun and smart and tongue-in-cheek and I can recall my parents' horror when they found out I was reading this incredibly conservative man's books. I had no idea! I just liked the adventures! I later read "God and Man" and was disappointed by Buckley's politics; nevertheless, I appreciated his immense talent.
His death makes me want to re-read the Oakes novels. Looks like there may have been one or 2 I missed.