PGPLOT is a Fortran subroutine package for drawing graphs on a variety of display devices. For more details, see the manual ``PGPLOT Graphics Subroutine Library'' available from T. J. Pearson The CPGPLOT library adds an intermediate level of wrapper functions between C programs and the PGPLOT library. These functions hide the system dependencies of calling PGPLOT behind a system independent interface. Documentation and demo programs are available in the /usr/local/share/pgplot directory. WWW: http://www.astro.caltech.edu/~tjp/pgplot/