  Self-healing of light refers to the ability of a light field to recover its
structure after being damaged by a partial obstruction placed in its
propagation path. Here, we will give a comprehensive review of the history and
development of self-healing effects, especially highlighting its importance in
vector vortex beams carrying spin and orbital angular momenta. Moreover, an
unified zoology of self-healing, structured light is proposed to unveil a
deeper understanding of its physical mechanism and provide a bird's eye view on
diverse forms of self-healing effects of different kinds of complex structured
light. Finally, we outline the open challenges we are facing, potential
opportunities and future trends for both fundamental physics and applications.
