This work investigates the institutional evolution of Harrow School, examining how a local foundation transformed into a globally recognized educational establishment over nearly seven centuries. Christopher Tyerman, a historian with deep ties to the institution, utilizes extensive archival records and primary source documentation to construct a comprehensive narrative. The text argues that the school's identity is defined not only by its academic and political prestige but also by its recurring cycles of financial instability, administrative reform, and social scandal. By balancing institutional triumphs with critical failures, the author provides a nuanced account of the school's role within the British educational landscape.

Historians and alumni frequently cite this work as the definitive modern account of the institution due to its objective tone and refusal to shy away from internal controversies. The text is recognized as a foundational resource for those studying the history of the English public school system and its influence on political leadership.