B Phenomenology

Many topics are discussed in b physics including lifetimes, decay mechanisms, determinations of the CKM matrix elements |V_{cb}| and |V_{ub}|, facilities for b quark studies, neutral $B$ meson mixing, rare b decays, hadronic decays and CP violation. I review techniques for finding physics beyond the Standard Model and describe the complimentarity of b decay measurements in elucidating new physics that could be found at higher energy machines.