This book investigates the evolving landscape of American spirituality in the late 20th century. Drawing on extensive polling data and sociological analysis, George Gallup Jr. and his co-authors explore the shifting beliefs, practices, and demographics that define contemporary faith in the United States. The work aims to chart the future trajectory of spiritual and religious engagement across various segments of the population.

This work is recognized for its data-driven approach to understanding American religious trends, leveraging Gallup's extensive polling expertise. It offers a comprehensive overview of the spiritual climate at the turn of the millennium, providing valuable insights for sociologists, religious scholars, and anyone interested in the evolution of faith in the United States. The book is considered a significant contribution to the study of contemporary religious demographics and belief.