Azimuthal anisotropy in Au+Au collisions at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msqrt><mml:mrow><mml:msub><mml:mi>s</mml:mi><mml:mrow><mml:mi mathvariant="italic">NN</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:msqrt><mml:mo>=</mml:mo><mml:mn>200</mml:mn><mml:mspace width="0.3em"/><mml:mi fontstyle="normal">GeV</mml:mi></mml:mrow></mml:math>

The results from the STAR Collaboration on directed flow (${v}_{1}$), elliptic flow (${v}_{2}$), and the fourth harmonic (${v}_{4}$) in the anisotropic azimuthal distribution of particles from Au+Au collisions at $\sqrt{{s}_{\mathit{NN}}}=200\phantom{\rule{0.3em}{0ex}}\mathrm{GeV}$ are summarized and compared with results from other experiments and theoretical models. Results for identified particles are presented and fit with a blast-wave model. Different anisotropic flow analysis methods are compared and nonflow effects are extracted from the data. For ${v}_{2}$, scaling with the number of constituent quarks and parton coalescence are discussed. For ${v}_{4}$, scaling with ${v}_{2}^{2}$ and quark coalescence are discussed.