In 2030, the world's population will be a staggering eight billion people. Of these, two-thirds will live in cities; most will be poor. With limited resources, this unbalanced growth will be one of the greatest challenges faced by societies across the globe. In the coming years, city authorities, urban planners, designers, economists and others will have to join forces to avoid a major social and economic catastrophe and to ensure that these expanding megacities will be habitable. Exploring how emergent forms of tactical urbanism could address rapid and uneven urban growth around the globe, The Museum of Modern Art presents Uneven Growth: Tactical Urbanisms for Expanding Megacities, its third iteration of the Issues in Contemporary Architecture series. Following the same model as the critically acclaimed projects Rising Currents and Foreclosed, Uneven Growth is a combination of workshop, exhibition and publication that brings together ideas from an international group of scholars, practitioners and other experts on architecture and urbanism. Featuring proposals for six cities on five continents--New York, Mumbai, Rio de Janeiro, Istanbul, Hong Kong and Lagos, each developed by a pair of teams (one local to the host city and one abroad)--Uneven Growth also documents the brainstorming processes and the workshops. Contributions from each of the teams and essays by leading scholars on the issue make the publication a rich resource for students and professionals alike. Participating teams include Cohabitation Strategies with Situ Studio, POP Lab with URBZ, MAS Urban Design ETH with Rua Arquitetos, Atelier d'Architecture Autogérée with Superpool, Network Architecture Lab with MAP Office and Inteligencias Colectivas with NLÉ Architects.