This book investigates the reasons behind Catholic attrition and explores the potential for their return. Stephen Bullivant, a professor of theology and religious studies, examines the demographic, social, and theological factors contributing to individuals leaving the Catholic Church. The work analyzes the specific aspects of Catholic faith and practice that former adherents report missing, and proposes pathways for re-engagement and retention within the Church.

The book is likely to be of interest to those within the Catholic Church concerned with membership retention and evangelization, as well as scholars of religion and sociology. Its focus on both the reasons for leaving and the potential for return suggests a balanced approach to a complex issue. The author's academic background implies a rigorous and evidence-based examination of the subject matter. The work aims to provide insights into the contemporary challenges facing religious institutions.