The review by G. R. Stewart provides an overview of the superconductivity in iron pnictide and chalcogenide (FePn/Ch) compounds, which were discovered to exhibit superconductivity at temperatures up to 56 K. These compounds, initially reported by Kamihara et al. in 2008, have unique Fermiology and magnetic properties that differ significantly from conventional electron-phonon coupled superconductors. The review covers the structural and electronic properties, phase diagrams, coexistence of magnetism and superconductivity, and the influence of pressure and magnetic fields on superconductivity. It highlights the complex behaviors of these materials, including the relationship between Tc (superconducting transition temperature), TS (structural transition temperature), and TSDW (spin density wave transition temperature) with doping. The review also discusses the theoretical and experimental probes used to study the pairing mechanism and nodal structure of superconductivity. Despite the diversity of properties, commonalities in the structural and magnetic behavior of FePn/Ch superconductors are noted, which may provide insights into their high-temperature superconductivity.The review by G. R. Stewart provides an overview of the superconductivity in iron pnictide and chalcogenide (FePn/Ch) compounds, which were discovered to exhibit superconductivity at temperatures up to 56 K. These compounds, initially reported by Kamihara et al. in 2008, have unique Fermiology and magnetic properties that differ significantly from conventional electron-phonon coupled superconductors. The review covers the structural and electronic properties, phase diagrams, coexistence of magnetism and superconductivity, and the influence of pressure and magnetic fields on superconductivity. It highlights the complex behaviors of these materials, including the relationship between Tc (superconducting transition temperature), TS (structural transition temperature), and TSDW (spin density wave transition temperature) with doping. The review also discusses the theoretical and experimental probes used to study the pairing mechanism and nodal structure of superconductivity. Despite the diversity of properties, commonalities in the structural and magnetic behavior of FePn/Ch superconductors are noted, which may provide insights into their high-temperature superconductivity.