Elements of Architecture focuses on the fragments of the rich and complex architectural collage. Window, façade, balcony, corridor, fireplace, stair, escalator, elevator: the book seeks to excavate the micro-narratives of building detail.The result is no single history, but rather the web of origins, contaminations, similarities, and differences in architectural evolution, including the influence of technological advances, climatic adaptation, political calculation, economic contexts, regulatory requirements, and new digital opportunities. It s a guide that is long overdue in Koolhaas s own words, Never was a book more relevant at a moment where architecture as we know it is changing beyond recognition.