The present collection brings together a set of essays which shed light on recent research into non-religion, secularity and atheism—topics which have been emerging as important areas of current research in a number of different disciplines. The essays cover a wide span—in terms of the various stances they discuss (secular, atheist, non-religious), the settings in which these topics are relevant (families, wider society, politics, demography) and the different perspectives which relate to socialisation and social relations (belief acquisition, discrimination). Written by authors from a variety of national settings and academic disciplines, the collection presents a range of methodologies, combining theoretical approaches with quantitative and qualitative research findings. The authors address issues related to an important academic field which had been neglected for some time, but which has been made relevant by the increasing percentage of people professing a non-religious stance. This collection represents a major contribution to this area of academic research, not only because it puts the themes of non-religion and secularity firmly on the academic map, but also because it offers a variety of different viewpoints and aims to bring clarity into the use of concepts and terminology. The authors make important contributions to the emerging body of research in this area and point out areas where further research is needed. The first essay provides a thorough introduction to this field, taking stock of the work done so far, highlighting the overarching issues, and embedding the essays in the wider context of existing literature. This book was originally published as a special issue of the Journal of Contemporary Religion.