The first book of its kind, this volume brings together a range of experts to review key methodological issues in the study of voluntary action, charitable behaviour and participation in voluntary organisations. Using case studies from around the world – from ethnography to media analysis and surveys to peer research – chapters illustrate the challenges of researching altruistic actions and our conceptualisations of them. Across different fields and methods, authors unpick the methodological innovations and challenges in their own research to help guide future study. Demystifying research and deepening our ability to understand the role of the third sector, this accessible book is suitable for social researchers at all levels.