Production and spectroscopy in heavy flavour

A wide programme of studies of heavy flavour production at the LHC is performed with the ATLAS detector. This paper covers recent results in measurements of pair b-quark production, di-J/ψ production cross-section and effective cross-section from double parton scattering. Studies on the production of ψ(2S) and X(3872) are presented as well. Paper also covers the measurement of J/ψ-meson non-prompt production fraction and B±-meson mass reconstruction