This book interrogates land issues and reform across the British and Irish Isles from c.1800 to 2021, with a particular focus on the period c.1830s–c.1940s. It builds on a rich body of work employing comparative approaches towards the ‘Land Question’ and the history of landed estates, drawing together fresh and original case studies which contextualise the historiographies of Ireland, England, Scotland and Wales. The contributors draw out similarities but also highlight the distinctive nature of land issues and reform programmes across the four nations of the British and Irish Isles.