It is the source of all life and, in its artificial form, also a means of power: light. Various artistic positions which focus on social, (power) political, ecological, or military aspects can be summarized under the term "political light art." For the first time, the publication 'Power! Light!' presents artistic positions of more than 100 international artists spanning roughly half a century, which shed light on current and historical events and issues relating to topics such as racism, exclusion, manipulation, surveillance, enlightenment, utopias, and violence, as well as public space and advertising.