"Star Ark" is a comprehensive specialist book that addresses the challenges and opportunities of human space colonization. The author Rachel Armstrong, along with a variety of scientists and theorists, presents innovative approaches to creating a livable habitat in the harsh environment of space. By examining the Persephone project, an interdisciplinary approach to space colonization is pursued, questioning existing ideas about sustainability and developing new concepts for resource conservation and life support. The book provides insights into the plans for constructing a world ship that is intended to be built in Earth's orbit within the next 100 years. It discusses how such a structure can provide colonists with a self-sustaining ecosystem on their journeys between the stars. The discussion also covers the technological and financial challenges associated with realizing this vision.