Welcome to Freemasonry, and welcome to the board. Masonry is a huge topic, and there is much for a new Mason to learn. There are two books, that will make an excellent beginning for you:
"The complete idiot's guide to Freemasonry" by Hodapp
and
"Freemasonry for Dummies"
Both of these are available from amazon.com
Have you decided if you wish to pursue any of the appendant bodies? I am a Scottish Rite Mason, and I enjoy the organization very much.