Hi Dean and welcome to Canreef!!
As Kelly mentioned, the internet will likely be one of your best sources for information. We have a great
reference library here, as well you can search throught the archives at Reef Central and Reefs.org.
One of the best books for inverts, in my opinion, is Anthony Calfo's "Reef Invertebrates" book. Its incredibly thorough and has some fantastic information not only on inverts, but different types of tank setups and how they all work.
Another great reference book is "The Conscientious Aquarist" by Robert Fenner. Its an excellent book that covers all of the bases in setting up a reef tank and how it all comes together.
Theres lots of other books that people will suggest but IMO, these are definitely two great ones to get you started
