MENU Design

I would like to learn more about the menustrip design .

What are the standards ?
What are the key points to bear in mind when designing one .
2D menu vs a N Dimentional top menu...
FILE , EDIT, .....
what are the standards that would direct the users to guide them and allow them to find things easily based on human psychology than a messy structure...

if you do know of any articles around this topic , books , etc please share it....

I am dealing with a messy 2D menu that I need to know all the facts before re-organising it.

Thanks...