Florence Lipsky’s *San Francisco, la grille sur les collines* explores how the iconic grid layout interacts with the city’s steep topography. Through a blend of photographs, maps, and concise commentary, the book examines the evolution of San Francisco’s streets, the challenges of cluster housing, and the broader implications of urban planning on a landscape defined by hills. Readers gain insight into the historical decisions that shaped the city’s distinctive pattern, the architectural character of its neighborhoods, and the ongoing dialogue between design and geography. The work serves as a compact yet richly illustrated guide for anyone interested in the intersection of architecture, history, and city planning.