Logo

\usepackage{pstricks, 
            pstcol, pst-text, pst-grad}
\definecolor{pink}{rgb}{1, .75, .8}

\begin{document}
\begin{pspicture}(-3, -2.2)(3, 2.2)
  \psset{linestyle=none}
  \newcommand{\curly}[1]{{\fontfamily{pzc}%
    \fontsize{17}{17}\itshape#1}}
  \pstextpath[c]{\psarcn(0, 0){2}{180}{0}}
  {\curly{The Unseen University}}
  \pstextpath[c]{\psarc(0, 0){2}{180}{0}}
  {\curly{Ankh-Morpork,Discworld}}
  \pscircle[fillstyle=gradient, gradangle=45,
    gradbegin=pink, gradend=yellow](0, 0){1.7}
  \rput[B](0, 0){{\Large\itshape\bfseries
    Rincewind, Arch Chancellor
  }}          
\end{pspicture}
\end{document}