Litterature On Marijuana Cultivation?

I'm a newbie looking to read books on the cultivation of marijuana. I'm very interested in both the process of growing marijuana and the different types/hybrids of marijuana.

-Thank you.

TRY GARDEN GNOME'S BOOKS....
See More Buds - Grow Marijuana DVD

GrowMoreWeed.com - Guides to growing cannabis weed marijuana
This site has almost all the books you will need to make your ladies feel good,truely a big library

Thanks alot CALIGROWN and oberohm... Both of your suggestions were alot of help to me.

Greg Gren's Cannabis Grow Bible.

in fact if you look at yesterday's posts, you will find that someone kindly put up a link allowing you to download and print the whole of the 4th edition fo free with no snags or bullshit.