Wanting used (can't afford most new) recent books from say, the last ten years or so. On aquarium set up, live/dead rock, equipment, chemicals used, lighting, filtration, etc. New as possible. I was just gifted Mike Paletta's new book, just waiting for it from Amazon. Very happy, gotta love Mike, one of the best !
Then books on fish, corals, invertebrates etc.
Then books on fish, corals, invertebrates etc.