%0 Journal Article %T The Tau Lepton and the Search for New Elementary Particle Physics %A M. L. Perl %J Physics %D 1998 %I arXiv %X This Fifth International WEIN Symposium is devoted to physics beyond the standard model. This talk is about tau lepton physics, but I begin with the question: do we know how to find new physics in the world of elementary particles? This question is interwoven with the various tau physics topics. These topics are: searching for unexpected tau decay modes; searching for additional tau decay mechanisms; radiative tau decays; tau decay modes of the W, B, and D; decay of the Z^0 to tau pairs; searching for CP violation in tau decay; the tau neutrino, dreams and odd ideas in tau physics; and tau research facilities in the next decades. %U http://arxiv.org/abs/hep-ph/9812400v1