Never before have cities been so important. Today, cities are home to the majority of the world’s population, accommodate most of global production, and are the goal of millions of migrants around the world. Yet, increasingly, our cities are growing informally, planned and built by non-professionals. Informality resembles an evolutionary process more than a simple absence of rules. In itself, informality is neither illegal, nor dysfunctional, nor indicative of poverty; in fact, its actors, skills and capital are probably our best chance to solve the world’s growing housing crisis.

While informal settlements are rightly criticized for their lack of hygiene and low-level living conditions, their underlying social and cultural networks are a testimonial to the unwavering courage and resilience of their inhabitants. Equally, the associated informal economic activities proliferate and basic urban services are increasingly provided informally. Using the Ethiopian capital Addis Ababa as an example, this publication by an interdisciplinary team of authors from urbanism, sociology and architecture analyzes informal housing options as well as economic strategies such as microloan or bottom-up insurance systems. It introduces typical informal professions such as the Kuré-Yalew (refuse collector), who acts as an “urban miner” and contributes a valuable service to the community by recycling materials. Thus, Lessons of Informality describes an array of planning strategies and possibly even a roadmap to a resilient city in emerging territories.

The book includes a DVD of _Spaces, a series of six documentaries on informality in Addis Ababa.