Someone on the lodestone posted a picture of the BLM Animus so it's been done already and possible to complete now. The text just words it in a very odd way and I'm not sure why yet. Also the stats you gain from the books are what stats are already on the weapons. The bow has 3 dex books, 3 vit books, 2 acc and 1 skill speed.

I posted some quick screenshots of the pages of the book as well http://na.finalfantasyxiv.com/lodest.../blog/1046305/
Not entirely sure if they all have the same exact format but that one gave me 100 enemies to kill, 3 dungeons with the final bosses being the target (one of which was lvl 50), 3 leves (2 were company ones, one maelstrom and one twin adder so look carefully when tracking these down) and 3 fates.