Yeah I just googled that and whoa! I wasn't aware that any "traditions" existed. I found this site. http://warlockasylum.wordpress.com/
I was referring to the book, the necronomicon I read in high-school. Well, most of it as I stopped and gave it away. I attributed the strange things that happened when I read that book to the book itself then but I think it had more to do with the house my father lived in at the time.
I've always been fascinated with the Sumerian civilization, their deities and rituals. Inanna and Enki in particular have always peeked my interest but with so many religious texts demonizing them, it was very disheartening. Thankfully there are a great deal of sources available today that weren't back then.