This work investigates the professional and personal evolution of Kingsley Martin, the influential editor of the New Statesman, to understand his impact on British political discourse. C. H. Rolph, a long-time colleague, utilizes Martin's private diaries, extensive correspondence, and public editorials to construct a comprehensive portrait. The author argues that Martin's editorial philosophy was defined by a constant tension between his personal pacifist ideals and the pragmatic demands of navigating a rapidly changing geopolitical landscape.

Historians and journalists frequently cite this biography as a primary resource for understanding the internal mechanics of the British press during the interwar and post-war periods. Readers often note the dense, archival nature of the prose, which provides significant insight into the intellectual climate of the era.