We now have products items featuring the Icosahedron, RxEvolution, and a bookplate found in Calhoun’s books from his teen years.
They can be found at https://www.redbubble.com/people/morwenscat/shop
Check out the John B Calhoun collection.
The Ecology and sociology of the Norway Rat
Available at https://www.amazon.com/Ecology-sociology-Norway-Rat/dp/B000WPZ9YU/ref=sr_1_6?qid=1687889993&refinements=p_27%3AJohn+B.+Calhoun&s=books&sr=1-6
Critical Mass DVD
Produced and directed by Mike Freedman
Available to rent or buy at https://www.amazon.com/Critical-Mass-Mike-Freedman/dp/B07C7JN4NN/ref=sr_1_5?crid=18HH9ME0M71EO&keywords=critical+mass+dvd&qid=1687890435&sprefix=critical+mass%2Caps%2C95&sr=8-5
JOHN B CALHOUN 