Inclusive |V_cb| and global fit

A reliable determination of the Cabibbo-Kobayashi-Maskawa matrix element $\mathrm{\mid }{V}_{cb}\mathrm{\mid }$ is mandatory for precision flavor physics and for the search for CP violating phases from new, heavy particles. In this article, we review the theory of the determination of $\mathrm{\mid }{V}_{cb}\mathrm{\mid }$ from inclusive semileptonic $B$ decays. We discuss the available measurements of the semileptonic $B$ branching fraction and other inclusive observables in B decays relevant to the determination of $\mathrm{\mid }{V}_{cb}\mathrm{\mid }$. Finally, we perform a global fit to extract $\mathrm{\mid }{V}_{cb}\mathrm{\mid }$ and the $b$-quark mass $m_b$.