Number of the Day

The Self-Improvement Summer, by the Numbers

Rosetta Stone, MasterClass, and Coursera have seen a sudden surge in sign-ups during the pandemic

Photo illustration, source: MR.Cole_Photographer/Moment/Getty Images

18 million: That’s how many users have joined the online learning platform Coursera since mid-March, a more than 400% increase over the same period last year, according to