Cohorts in Google Analytics help you examine and compare new users that came to your website during different time periods. This might be especially useful when you want to see how an update to your website affected its stickiness to new users. Sometimes you might be in a place where you explain your service to users in a bad way and they don't want to come back as a result. Then you update your website to be awesome and the new users come back all the time. If you look at averages alone, what will happen is that you'll end up not being able to analyze the effect of the actual update, but rather look at a historic number that doesn't help you improve. In this video, I take you through the report and some basics about Cohort analysis. Useful Links Google about Cohorts support.google.com/analytics/answer/6158745?hl=en A longer video from the Lean Analytics guys where they talk a bit about cohorts: www.youtube.com/watch?v=uIG1H_EQ6WQ Two guys who probably explains this better than I do www.youtube.com/watch?v=YhdaYipzMx4 Music from Epidemic Sound - epidemicsound.com