That's cool, they say since the advent of the printing press it's easy to own a set. But, then they show the search uses 4 different collections.
What's that for, if it's easy to get a printed set? That would lead me to believe there is not one complete set, they are spread out among a bunch of collectors.
Also, I wonder how many camel drivers and goat herders truly understand the power of boolean? I'm still betting most people rely on family/town custom and clerics for the answers.