The founder of the engineering firm, which continues to realize seminal structures around the world, Ove Arup is widely acknowledged as the most significant engineer of his time. Selected from his personal written archive generated over the course of his illustrious career, these lectures, essays, and interviews broadly share several themes: insight into Arup's thinking on contemporary and sustainable design processes; the importance of collaboration between professionals in architecture and engineering; and Arup's attempts to define quality in the built environment. These chronologically arranged writings span four decades and are as relevant today as they were when first produced. Illustrating wisdom, practical problem solving, and Arup's philosophy, this book is a necessary and long-overdue addition to the library of anyone who has a passion for, and an interest in, the principles of great design.