  There has been much progress in measurements of charmless hadronic B decays
during 1997. Building on the previous indications from CLEO and LEP, CLEO now
has clear signals in five exclusive final states: K^+\pi^, K^0\pi^+, etapr K^+,
etapr K^0, and omega K^+. The branching fractions for the etapr K modes are
several times larger than the others. A similar strikingly large signal has
been seen in the inclusive decay, B->etapr X_S. All of these signals would
appear to be dominated by hadronic penguin processes. (Invited talk presented
at the Seventh International Symposium On Heavy Flavor Physics, Santa Barbara,
CA, July 7-11, 1997.)

High Energy Physics - Experiment