In view of the current climate crisis and looming ecological catastrophe, environmentalism has become a key driver to rethink the architectural discipline. The publication 'Habitat: Ecology Thinking in Architecture' aims to highlight some of the historical sources of ecological approaches that are currently reshaping the architectural field. The book points out the paradigmatic shift in thinking about the built environment as something inherently contextual and relational. By demonstrating the continuities, disruptions and transformations at stake, the book deepens the ongoing conversations, while suggesting directions for future research.