  In these lectures I review what has been learned from studies of b-quark
decays, including semileptonic decays ($V_{ub}$ and $V_{cb}$),
$B^o-\overline{B}^o$ mixing and rare B decays. Then a discussion on CP
violation follows, which leads to a summary of plans for future experiments and
what is expected to be learned from them. (Presented at NATO Advanced Study
Institute on Techniques and Concepts of High Energy Physics, Virgin Islands,
July 1996.)
