there are so many6 books out there!i have a few good ones.
the complete book of the marien aquarium by vincent b. hargreaves.
aquarium corals by eric borneman.
reef secrets by alf jacob nilsen and svien a fossa.
reef invertabrates by andthony calfo and bob fenner
and a bunch of other book by various small names.
hey, you should get thoes books by j.e.n. veron. im sure thoes are some of the best books you can get because they cost a small fortune!
you should pretty much read whatever you can get your hands on! books and articles alike...and not just books on the aquarium, but of the natural reef itself! books are awsome!