Why this Japanese chalk is being hoarded by mathematicians | Boing Boing
Sandeep Verma (स्वर) on X: "You feel the pressure to teach really well when your department Head casually gifts you the best and most legendary chalk ever!! Oh, the joy of pedagogy!!
Japan's Hagoromo chalk continues its legacy in S. Korea
How a brand of chalk achieved cult status among mathematicians | CNN
GENUINE HAGOROMO FULLTOUCH WHITE CHALK 72 PCS (MADE IN KOREA)
What's So Special About This Japanese Chalk?
A Ride on the Assembly Line With the World's Most Famous Chalk - The New York Times