This chapter provides an introduction to the Oxford Handbook of Emerging Adulthood. It begins with an overview of the aims and scope of the handbook. Then it summarizes briefly the content of the chapters to come. The handbook is comprised of 35 chapters organized into 10 parts, with each part containing from two to six chapters. The chapters cover a broad range of areas, from structural factors (such as social class) to relationships (from family to friends) to risk and resilience. The final section of this introductory chapter presents suggestions for the future of the field. The explosive expansion of the field over the past 15 years is noted, and suggestions are made for the field to focus more on EAs who do not attend college, devote more research to international variations in EA, and examine the transition from EA to the next life stage.