The idea behind the book After the Bell: The World of Leisure for Children and Teenagers was born following a national case study, which was funded by the Chief Scientist of the Ministry of Education. Reviewing the literature for that study revealed a necessity for a comprehensive picture of children and adolescents' leisure world. This book was written to address this need. The uniqueness of the book lies in the fact that it combines theory, data and research findings from international and local settings related to children and adolescents. This book presents the essence of the literature regarding the nature of leisure, relevant theories, motives and factors that affect leisure choices, and perceptions of incentives and rewards obtained from participating in leisure activities. It concludes with a chapter on leisure education summarizing the knowledge on this topic as well as suggesting methods and means for effective leisure education. This book is intended for educational researchers, educators, student teachers, and school teachers. It is also suitable for decision-makers and educators in general as well as for anyone related to children and teenagers' well-being (e.g., educational counselors, social workers, psychologists, youth mentors, youth movement and community leaders).