Deborah Oakley (Architecture) is the new co-author of (4th edition). In addition to updating the text and introducing new example structures, this new edition overhauls the entire graphic presentation for the first time. Oakley created nearly 500 new, full-color 3D computer-rendered illustrations and diagrams, as well as researched and curated more than 150 illustrative photographs, many of which come from her own travel collection. Both content-wise and graphic-wise the book is poised to reclaim its position as one of the leading texts on structural principals for students of architecture in the United States and abroad.