  I present high-order calculations, including soft-gluon corrections, for
single-top and top-antitop production cross sections and differential
distributions. For single-top production, results are presented for the three
different channels in the Standard Model, for associated production with a
charged Higgs, and for processes involving anomalous couplings. For top-antitop
pair production, total cross sections and top-quark transverse-momentum and
rapidity distributions are presented for various LHC energies.
