Participate! Portraits of Cities and Citizens in Action - Urban Photography Book for Travel Enthusiasts and Documentary Lovers" （如果原中文标题是“参与！行动中的城市与市民肖像”，翻译优化后为：） "Engage! Portraits of Cities and Citizens in Action - Urban Photography Book for Travelers and Documentary Enthusiasts

'Participate! Portraits of Cities and Citizens in Action' offers an introduction to the complex world of urban development, identity, and participation. It explains how the self-understanding of cities is mirrored in their approach to urban development. The basis of the book is formed by portraits of six European cities: Berlin, Hamburg, Paris, Lyon, Amsterdam, and Groningen.