  The electroweak boson inclusive production cross sections and their ratios
are described in the electron and muon decay channels. The observation of W and
Z bosons in the tau decay channel is also presented. The data from pp
collisions at 7 TeV were collected during 2010 using the ATLAS detector at the
Large Hadron Collider and the results are compared to predictions at NNLO in
perturbative QCD.
