This work investigates the prevalence, purpose, and cultural significance of explicit sexual imagery found on the exterior of medieval European churches. The authors, Anthony Weir and James Jerman, utilize a comprehensive survey of architectural carvings to challenge traditional assumptions about the piety and moral rigidity of the Middle Ages. By documenting these often-overlooked figures, they argue that such imagery served complex functions ranging from apotropaic warding against evil to satirical commentary on human behavior within the ecclesiastical framework.

Experts recognize this text as a foundational reference for the study of marginalia and non-canonical religious art. Readers frequently note the academic rigor of the documentation, which provides a necessary counter-narrative to sanitized interpretations of medieval church architecture.