The CDF collaboration is completing a number of studies on the top
quark, based on samples collected during Run I of the Tevatron Collider.  The
production and decay properties of the top quark are being examined in most of
the ttbar decay channels, and many of these results have recently been
published.  The study of the top quark has moved beyond measurements of its
mass and production cross section, to detailed studies of W polarization in
top decays, single top production, branching fractions, the W -t -b coupling,
and searches for rare decays.