http://anidb.net/perl-bin/animedb.pl?show=anime&aid=5558

Based on a light novel series by Arikawa Hiro, illustrated by Adabana Sukumo.

In the year 2019, the explosion of information and misinformation became a direct threat to society. In a daring decision, it was decided to create a new government agency dedicated solely to information management. Now some thirty years later, the government still monitors and controls information, suppressing anything they find undesirable, but standing against their abuses of power are the libraries, with their special agents called ‘the book soldiers.’

LOLZWHAT?
Book Soldiers - i will kill with throwing books

its not in my list for your information...
the title caught my attention, so i just post it up here

wakarimasen lolz

so this anime is about war in library