In 1973 he moved to London, where he worked with design companies, taught at the London College of Printing and became a popular figure amongst the city's typomaniacs.

They also shared a fearful myopia of identical dioptry, were apt to bump into inanimate objects, sit down on invisible chairs, or bounce off each other as they shambled about talking and gesticulating.

If some people enjoy them, andI have evidence that some do, that is all to the better.

On the Cartesian product of two manifolds a differentiable structure can be constructed in the following way.