Irvin Khaytman is a walking Harry Potter encyclopedia from New York City, where he does taxes by day and all things geeky by night. He has been writing and publishing essays about Harry Potter since 2007 and became a columnist at MuggleNet, the world's most popular Harry Potter fansite, in 2011. In the last few years, he has also been a regular contributor to Hypable. When not reading or discussing books, Irvin can be found dancing to wizard rock or planning costumes for conventions. He identifies as a Ravenpuff.