Yeah, that was my assumption as well. But upon reflection, I fear they don't have the expertise to tell the difference between quickly-obsolete texts and those that are more timeless. It can be bewildering even with expertise in the field, so I don't begrudge them the difficulty. But maybe you're correct that they have a better knowledge of what is useful to the local community, and perhaps decided these were too academic and sent them to a university library instead. But personally, I think it's a bummer that a curious kid won't see SICP on the computing shelf, rather than five or six books on ColdFusion and the like.