Since the 1964 publication of Adult Education: Outlines of an Emerging Field of University Study (commonly known as ``the black book′′), the number of adult education graduate programs has grown nearly eightfold and the wealth of new data, theories, and social and environmental developments continues to increase exponentially. The authors explore the development, accomplishments, and changes in the field since the black book, and chart new directions for research, theory, and practice in the study of adult education.Since the 1964 publication of Adult Education: Outlines of an Emerging Field of University Study (commonly known as ``the black book′′), the number of adult education graduate programs has grown nearly eightfold and the wealth of new data, theories, and social and environmental developments continues to increase exponentially. The authors explore the development, accomplishments, and changes in the field since the black book, and chart new directions for research, theory, and practice in the study of adult education.