Observables and anomalies in $B\rightarrow K^{(*)}\ell^{+}\ell^{-}$ decays

Recent analyses of $B\rightarrow K^{(*)}\ell^{+}\ell^{-}$ processes at LHCb are in tension with Standard Model predictions. Some phenomenological interpretations suggest a contribution from a new vector particle. These results are difficult to account for within supersymmetric models. However, other phenomenological analyses suggest the data may be described by strong interaction effects that were assumed to be small when producing the Standard Model predictions. A pedagogical introduction to the observables in question is presented, alongside experimental considerations. This is followed by a brief overview of the phenomenological results.