This is the first New Directions volume related to young adult learners since 1984. Then, as now, young adults are an important segment of the adult population but have received scant attention in the adult education literature. Increasingly, youths and young adults are enrolling in adult education programs and in doing so are changing the meaning of adulthood. Given the significant demographic, technological, and cultural shifts during the past 30 years, there is an increasing need for practitioners and program planners to reconsider what constitutes adult and adult education. An understanding of the changing meaning of adulthood is fundamental to developing programs and policies that will address the needs of younger learners, and we believe it is time for an updated discussion among adult educators and scholars in other disciplines. This sourcebook is designed to reignite the discussion related to meeting the educational needs of young adults along with a timely and interdisciplinary discussion that highlights the transitional needs of young adult learners. This is the 143rd volume of the Jossey Bass series New Directions for Adult and Continuing Education. Noted for its depth of coverage, it explores issues of common interest to instructors, administrators, counselors, and policymakers in a broad range of education settings, such as colleges and universities, extension programs, businesses, libraries, and museums.