The Knowledge Map was a feature on Khan Academy which contained a starry night, containing all of the stars. The stars represent lessons. Yellow stars with a blue border are lessons, user are proficient at, green borders mean recommended lessons, and others are lessons that are not recommended. An orange border means a lesson user should review. It also told the user how skills are connected to each other. The Knowledge Map also has a navigation bar, with which students could search for a particular skill. Since the Learning Dashboard came out, the feature is no longer available as of August 2013. Users can still access it here, but it is no longer reachable without the direct link.