% interface=en

\setuppapersize
  [S6][S6]

\setuplayout
  [width=middle,
   height=middle]

\setuphead
  [chapter]
  [header=high,
   style=\bfc,
   alternative=middle]

\starttext

\title{Peter D. Ward}   \processfile{ward}
\title{Hermann Zapf}    \processfile{zapf}
\title{Bill Bryson}     \processfile{bryson}
\title{Edward R. Tufte} \processfile{tufte}

\stoptext