Rich Holmes@doctroid@vmst.io
I borrowed a copy of this book from the university library many years ago. A recent #Numberphile video reminded me of it and I went looking for it online; found it in new condition (!) for a stupid low price — well, twice the price shown on the back cover, but that was the price when it was published 45 years ago, so, stupid low!
#math #maths #mathematics #polyhedra #toroids