Nerdfighters are people who, instead of being made up of cells and organs, are made up of pure awesome. The nerdfighter community arose from the videoblog project Brotherhood 2.0, with brothers John and Hank Green. Nerdfighters are also known to be fans of John's books and Hank's music.

The guide below is just advice on how to be aware of Nerdfighter culture; it is not obligatory to do any of those in order to be Nerdfighter. If you want to be a Nerdfighter, you are a Nerdfighter.