Bottomonium and Charmonium at CLEO

The bottomonium and charmonium systems have long proved to be a rich source of QCD physics. Recent CLEO contributions in three disparate areas are presented: (1) the study of quark and gluon hadronization using $\mathrm{{\rm Y}}$ decays; (2) the interpretation of heavy charmonium states, including non-$c\bar{c}$ candidates; and (3) the exploration of light quark physics using the decays of narrow charmonium states as a well-controlled source of light quark hadrons.