  We present an overview of the muon reconstruction and identification methods
employed by the D0 Collaboration to analyze the Run II (2001-2011) ppbar data
of the Fermilab Tevatron collider at sqrt s = 1.96 TeV. We discuss the
performance of these methods, how it is measured using D0 data, and how it is
properly modeled by the D0 simulation program. In its pseudorapidity
acceptance, eta< 2, the muon system identifies high-pT muons (pT>10 GeV) with
efficiencies ranging from 72% to 89%. Muons tracks are reconstructed in the D0
central tracking system with efficiencies ranging from 85% to 92% and with a
typical relative momentum resolution of 10% for pT = 40 GeV. Isolation criteria
reject multijet background with efficiencies of 87% to 99%.
