I agree (Planet Narnia also blew my mind), but I tried to make a judgement call over whether his non-fiction was "widely read" (I know very few people who have

I agree (Planet Narnia also blew my mind), but I tried to make a judgement call over whether his non-fiction was "widely read" (I know very few people who have read any of it, relative to the number who have read the Narnia books).