I was going through an article written by Joe Celko in www.sqlservercentral.com and found very interesting poster related to database normalization rules.
"Many years ago, there was a magazine named Database Programming & Design which published a poster on Normalization by Marc Rettig as a subscription renewal premium. It was so popular that it is still around after all this time. It follows one example, the Daisy Hill Puppy Farm database."
Hope, this poster may help new SQL folks to understand the normalization. :)