Book Review: Urban Playground: How Child-Friendly Planning and Design… 151 Urban Playground: How Child-Friendly Planning and Design Can Save Cities Tim Gill (2021) London: RIBA Publishing, 208 pages $47.50 (paperback); ISBN: 978-1859469293 Many urban designers and planners will have come across the idea of child-friendly cities, however few are likely to fully appreciate the enormous potential for childfriendly planning and design to improve cities for all citizens. In Urban Playground Tim Gill provides a cogent explanation of why child-friendly planning is not only important for children, but for the future survival of cities themselves. This book is full of insights to help urban designers, planners, politicians and policy makers create more livable, resilient and prosperous cities. Moreover, the implications of the arguments in this book go further than “saving cities.” Child-friendly urban planning provides an effective strategy for responding to the global challenges currently facing humanity, including the climate emergency and biodiversity loss. Gill explains: “Looking at planning and design through children’s eyes does not just offer fresh perspectives and a compelling new urban vision. It reveals the best way to set cities on a firm course away from ecological, economic and social decay.” This book shows why child-friendly planning is needed and how it can be done. Tim Gill is ideally placed to explain the link between child-friendly planning and sustainable cities that are livable for all city residents. His experience in urban design, transport, children’s play and well-being advocacy, planning, and public policy provides a rich understanding of the complexities involved in understanding the changing nature of children’s play and the importance of the people and places around children to their well-being. Gill’s research has been widely published in academic and mainstream media. This book provides a holistic perspective that brings together the understandings from researchers, policy makers and children and families themselves. Gill explains that not only do children value play opportunities and facilities, they also value walkability, lack of traffic, and the presence of nature. Not surprisingly, many of the child-friendly initiatives discussed in the book involve the promotion of child-friendly, active transport modes: walking, cycling and public transit. Throughout Urban Playground, Gill emphasizes the importance of taming traffic, particularly on residential streets. Child-friendly street design necessitates reducing both the speed and the volume of traffic. Gill explains that there is a strong rationale for reducing motor vehicle speeds on almost all urban streets, and this is an integral component of the child-friendly planning in many of the case studies outlined in Chapters 3 and 4. Lower speeds not only support child-friendly neighborhoods in terms of enhancing children’s safety and mobility; they can also provide opportunities for reclaiming space for play and thus help increase the affordances provided for children. Book Review: Urban Playground: How Child-Friendly Planning and Design… 152 Many cities appreciate that slower streets are safer for children, and many city mayors also realize that prioritizing initiatives for children increases community support for road safety or sustainability initiatives. This is the case, for example, in Fortaleza, Brazil, where the city focused on the benefits for children in tackling public resistance to initiatives to tame traffic and reduce road space. Gill argues that child-friendly planning “is unsurpassed as a way to overcome unreasonable opposition.” Urban Playground begins by introducing the links between children and urban planning, explaining why planning for children matters. Chapter 2 then provides a working definition of child-friendly planning: “an evolving set of ideas about shaping streets, parks, squares and other public spaces so that children are active and visible in urban life. It takes children’s views and experiences seriously, and aims, through planning and design, to expand their opportunities to play, explore and get around their neighborhood and the wider city.” Gill employs a conceptual framework devised by the Finnish researcher Marketta Kyttä to describe two key dimensions of child-friendly urban planning. The first focuses on children’s mobility—their ability to get to places, especially on their own (their independent mobility). The second is the number and type of spaces and facilities on offer...