  This paper presents a study of $Z \to ll\gamma~$decays with the ATLAS
detector at the Large Hadron Collider. The analysis uses a proton-proton data
sample corresponding to an integrated luminosity of 20.2 fb$^{-1}$ collected at
a centre-of-mass energy $\sqrt{s}$ = 8 TeV. Integrated fiducial cross-sections
together with normalised differential fiducial cross-sections, sensitive to the
kinematics of final-state QED radiation, are obtained. The results are found to
be in agreement with state-of-the-art predictions for final-state QED
radiation. First measurements of $Z \to ll\gamma\gamma$ decays are also
reported.
