Esther Hanig’s friend wrote this book. Sánchez-Jankowski, Martín. Cracks in the Pavement: Social Change and Resilience in Poor Neighborhoods. 1st ed. University of California Press, 2008.   It has a wonderful introduction and theoretical discussion at the beginning. Based on years of on site investigations. Wonderful observations of poor neighborhoods and how they function. Despite being an academic’s work, the writing is accessible to a lay reader.