The UNESCO headquarters in Paris. The Pirelli skyscraper in Milan. The Palazetto dello Sport in Rome. The "soaring beauty" of Pier Luigi Nervi's visionary designs and buildings changed cityscapes in the twentieth century. His uncanny ingenuity with reinforced concrete, combined with a gift for practical problem solving, revolutionized the use of open internal space in structures like arenas and concert halls.

Aesthetics and Technology in Building: The Twenty-First-Century Edition introduces Nervi's ideas about architecture and engineering to a new generation of students and admirers. More than 200 photographs, details, drawings, and plans show how Nervi put his ideas into practice. Expanding on the seminal 1961 Norton Lectures at Harvard, Nervi analyzes various functional and construction problems. He also explains how precast and cast-in-place concrete can answer demands for economy, technical and functional soundness, and aesthetic perfection. Throughout, he uses his major projects to show how these now-iconic buildings emerged from structural truths and far-sighted construction processes.

This new edition features dozens of added images, a new introduction, and essays by Joseph Abram, Roberto Einaudi, Alberto Bologna, Gabriele Neri, and Hans-Christian Schink on Nervi's life, work, and legacy.

Born in Sondrio, Italy, in 1891, Pier Luigi Nervi was a pioneer in the engineering and architecture of reinforced concrete. His buildings showed how the use of reinforced concrete expanded the possibilities of form and structure. His methods, meanwhile, ingrained his structures with patterns that came directly out of his economical, manual construction processes. The results were buildings that matched awe-inspiring spans with surprisingly human scale.

Beauty's Rigor offers a comprehensive overview of Nervi's long career. Drawing on the Nervi archives and a wealth of photographs and architectural drawings, Thomas Leslie explores celebrated buildings like Palazetto dello Sport built for the 1960 Rome Olympics, St. Mary's Cathedral in San Francisco, and the UNESCO headquarters in Paris. He also sheds new light on unbuilt projects such as the Pavilion of Italian Civilization for the Universal Exposition of Rome E42. What emerges is the first complete account of Nervi's contributions to modern architecture and his essential role in a revolution that realized concrete's potential to match grace with strength.

From skyline-defining icons to wonders of the world, the second period of the Chicago skyscraper transformed the way Chicagoans lived and worked. Thomas Leslie’s comprehensive look at the modern skyscraper era views the skyscraper idea, and the buildings themselves, within the broad expanse of city history. As construction emerged from the Great Depression, structural, mechanical, and cladding innovations evolved while continuing to influence designs. But the truly radical changes concerned the motivations that drove construction. While profit remained key in the Loop, developers elsewhere in Chicago worked with a Daley political regime that saw tall buildings as tools for a wholesale recasting of the city’s appearance, demography, and economy. Focusing on both the wider cityscape and specific buildings, Leslie reveals skyscrapers to be the physical results of negotiations between motivating and mechanical causes.

Illustrated with more than 140 photographs, Chicago Skyscrapers, 1934–1986 tells the fascinating stories of the people, ideas, negotiations, decision-making, compromises, and strategies that changed the history of architecture and one of its showcase cities.