I am thinking in terms of our own library, yes. I really have to insist that it is in fact pressing. We've decided our library is committed to Order but that doesn't mean it's already as orderly as it can possibly be. Consider that Mathilde's dedicated herself to Ulgu, but still doesn't have total knowledge of wielding it and still finds great use in the books she has on the subject. Similarly, books on bibliothecography won't be obsoleted by the Order mandate, they'll help enact it. The more resources Mathilde has on hand, the better she'll be able to pursue her goals - this applies to all things and the library is no exception.
But I said it's not merely useful, but pressing, and it is. Von Sangster's library is described as a "great library" and Mannfred's is noted to rival it. One of the few other libraries described as "great" is the Great Library of Altdorf, which Boney's said is between ten and a hundred times as big as ours. Maybe Mannfred's library isn't quite as big, but I think it's safe to assume it's still a gargantuan amount that outstrips our current stock by a good margin. Purchasing an extensive set of guides on library organisation will soon be a great relief for Mathilde, who'd otherwise have no easy reference on hand when organising the coming booktide.
There's no better time to get books on library science than at this very moment (except perhaps when we first decided on a library). Please purchase them.