An observatory is a place for the observation of the universe. The artists of Observatorium, however, cast their gaze upon the inhabited world. All over the planet, they have created works of art that are not only to look at, but also to enter, observe and reflect from. Over the past 30 years, Observatorium produced an internationally significant body of work, from the sculpture Zandwacht (Sand Watch) in the Port of Rotterdam to Dwelling in Seclusion, a work of art devoted to solitude in New York. The works of art are emblematic of their surroundings, whether they are in a residential area in transition or an industrial landscape that is being transformed into a nature reserve, and are intended to help visitors and local residents find meaning and a future in these changes. Public Art for Public Life is a summary publication in which the members of Observatorium are searching for the results, significance and lessons of their body of work on the interface between architecture, sculpture and landscape. Key issues are the creative process, temporality, integration in changing (urban) landscapes, public participation and imagination. The result is a book full of inspiring examples of the power of art in the public space.