Mathematicians mourn the loss of the 'Rolls-Royce of chalk' | The World from PRX
Hagoromo chalk: Why the demise of a Japanese company is a blow to mathematics | The Independent | The Independent
Where Theory Meets Chalk, Dust Flies - The New York Times
Mathematicians snatch up last boxes of the "Rolls Royce of chalk" | CBC Radio
HAGOROMO Fulltouch Chalk 5 Colors 72 PCS – hagoromo.shop
The Chalk Market: Where Mathematicians Go to Get the Good Stuff - Cal Alumni Association
Why the World's Best Mathematicians Are Hoarding Chalk - YouTube
Linear Algebra Course Materials
Hagoromo Chalk Is Available on Amazon | The Strategist
How a brand of chalk achieved cult status among mathematicians | CNN
How a brand of chalk achieved cult status among mathematicians | CNN
Hagoromo Fulltouch: The Legendary Chalk Hoarded by Mathematiciansk | HowStuffWorks
Incunabula on X: ""Hagoromo Fulltouch Chalk was at the very pinnacle of the chalk world. According to Conrad, its semi-mythical status, which prompted it to be hoarded by mathematicians before the company
Hagoromo chalk works every time #math #mathtok #chalk #hagoromo #black... | TikTok
Mathematicians mourn the loss of the 'Rolls-Royce of chalk' | The World from PRX
The University of Chicago Magazine
A Ride on the Assembly Line With the World's Most Famous Chalk - The New York Times
Finding mystery, truth, and beauty on mathematicians' chalkboards | Princeton University Press
Former cram school teacher keeps legacy of Hagoromo chalk - The Korea Times
The chalk mathematicians adore: Hagoromo Fulltouch Chalk | The Kid Should See This
Why the world's best mathematicians are hoarding chalk | CNN
Hagoromo Chalk Is Available on Amazon | The Strategist
Chalk and awe: Why scientists are going wild over a cult chalk
The Art of Mathematics in Chalk | Scientific American
What is the Japanese chalk that even told mathematicians that it is impossible to make a calculation error with this chalk? - GIGAZINE
Positioning an expensive product in a commoditized environment
Quoted in New York magazine: The Chalk for Math Professors | Joel David Hamkins
