  Little Higgs models are an interesting extension of the Standard Model at the
TeV scale. They provide a simple and attractive mechanism of electroweak
symmetry breaking. We review one of the simplest models of this class, the
Littlest Higgs model, and its extension with T parity. The model with T parity
satisfies precision electroweak constraints without fine-tuning, contains an
attractive dark matter candidate, and leads to interesting phenomenology at the
Large Hadron Collider (LHC).
