Popsugar Living Staying Home Free Online Harvard Classes 15 Free Online Classes You Can Take at Harvard Right Now 29 April 2020 by Hedy Phillips View On One Page Photo 7 of 15 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 7 Data Science: Productivity Tools Learn how to use GitHub, git, Unix/Linux, and RStudio in this data science course. Take the Data Science: Productivity Tools course. Previous Next Start Slideshow Staying HomeActivitiesCollege