This book considers the motives, ambitions, and malaprops of writing architectural history during the early-1900s – a moment that coincided with the emergence of modernity. In reference to a series of eccentric Anglo-American cultural figures, it considers the relationships between architecture, human perception, disease, and frailty to provide original ideas regarding the writing of architectural history and the literary construction of architecture. Architecture is not typically associated with frailty. Indeed, one of the founding principles of architecture is that it should aspire to be stable, resilient, and indefatigable. In addition, architecture is also not typically thought of in terms of its literariness. Tracing this contradictoriness, this book considers architecture as a frail, literary object by examining the eccentric architectural criticism of Geoffrey Scott, author of The Architecture of Humanism (1914), together with the opportunistic connoisseurship of Bernard Berenson, the leading authority on the attribution of Italian Renaissance painting. Through a reading of their works, it interprets architecture as both “frail,” when viewed through the diffracted lens of nervous illness, and a form of “writing,” in which architecture assumes concrete form through literary description. This book will be of interest to academics, students, and researchers in architecture and architectural history. Mark Campbell is the Reader in Architecture and Media at the Royal College of Art, UK. His research examines the histories and interrelationships between architecture, art, and media. Mark received his PhD and MA from Princeton University, USA, and his work has been supported by the Paul Mellon Centre for British Art, Barr Ferree Fund, Princeton University, Royal College of Art, and the Architectural Association. His books include Bernard Berenson: Connoisseurship and the Art Market (2026); The Parallax View (2024); and Paradise Lost (2016).