Long considered as a noble element, too inert and therefore useless in catalysis, the status of gold changed in the 1990s when interesting reactivities were discovered and applied in several reactions of industrial importance. During the past two decades, this homogeneous gold catalysis has grown spectacularly1 and broadly applied. Besides the unique ability of gold complexes to activate C=C bonds of unsaturated substrates towards nucleophilic addition, entirely new perspectives have been opened recently in gold Au(I)/Au(III) (photo)redox catalysis and careful ligand design played a crucial role to emulate unprecedented reactivity at gold