Around thirty years ago I ran the company's in-house print shop.
The work load was like flying an airplane, hours of boredom punctuated be periods
of shear panic. This meant a lot of idle time for our graphic artist/typesetter,
who everyone knew as Cat. Now Cat like
to sketch/doodle in her spare time and after a while they took on a life of
their own. Don't know if she ever did anything with it after she left the
company, but here's a mark-up copy of Applications of Purr Power by Cat Scott.