Sure, you know the difference between there, their, and they're, but would you consider yourself a true grammar nerd? While some people balk at the term, plenty of others embrace it. Now Grammarly—a proofreading application that will double-check your grammar on emails, cover letters, and even social media posts—has mined their 5-million-fan Facebook page for data about those who own their "Grammar Nerd" identities. Check out their findings below:

Anatomy of a Grammar Nerd Infographic