Book excerpt: Available Open Access under CC-BY-NC licence. With an increasingly diverse ageing population, we need to expand our understanding of how social divisions intersect to affect outcomes in later life. This edited collection examines ageing, gender, and sexualities from multidisciplinary and geographically diverse perspectives and looks at how these factors combine with other social divisions to affect experiences of ageing. It draws on theory and empirical data to provide both conceptual knowledge and clear ‘real-world’ illustrations. The book includes section introductions to guide the reader through the debates and ideas and a glossary offering clear definitions of key terms and concepts.