The art of sharpening pencils (2007)
matthewjamestaylor.com
matthewjamestaylor.com
It's important to note that the goal is to set it up for drawing with the side of the lead, not the point. (he demonstrates the grip and drawing technique it's designed for toward the end).
I mostly prefer 2mm lead holders though because I'm too lazy to spend time sharpening and figuring out what to do with the shavings.
You can also use a pencil holder or lengthener.