Undo Function/Key?

Is there an undo function or key I can use to undo a step?
Thanks

Crtl+Zkey Up to 64 steps or whatever limit you have set in User Preferences–>Edit Methods–>Steps

More info, found by using the forum search function:

http://blenderartists.org/forum/showthread.php?t=71142&highlight=undo+redo

Edit
Also, I forgot to mention that from within blender itself under the “Help” menu, there is a
Hotkey and mouse action reference with a search function. :slight_smile:

Also depends on whether your in Object or Edit mode. Either Control Z or U, cant remember off hand check which is which