I looked at this set from Ocean Aquatics and was very impressed with it. When I save up my money one day, I'd get it.
Corals of the World
https://www.oceanaquatics.com/view_p...uct=CORT3TJC35
Currently, I just have:
Aquarium Corals by Eric Borneman
Reef Invertebrates by Anthony Calfo and Robert Fenner.