Hi, I finaly registered to hacker news only to congratulate you and ask how did you make these? I love Data and love to see new ways of displaying it, this is a

Hi, I finaly registered to hacker news only to congratulate you and ask how did you make these? I love Data and love to see new ways of displaying it, this is an awesome idea, I'd like to try and make things like these for a hobbie, care to show me some pointers?