Book excerpt: In the World Library of Educationalists, international scholars themselves compile career-long collections of what they judge to be their finest pieces—extracts from books, key articles, salient research findings, major theoretical and/practical contributions—so the world can read them in a single manageable volume. Readers thus are able to follow the themes and strands of their work and see their contribution to the development of a field, as well as the development of the field itself. Internationally recognized for his research on environmental education, science engagement, learning outside the classroom, and teacher identity and development, in this volume Justin Dillon brings together a thoughtfully crafted selection of his writing representing key aspects of his life and work leading to his current thinking on the need for a convergence of science and environmental education. The chapters are organized around 7 themes: On Habitus; On methodological issues; Developing theories of learning, identity and culture; Challenges and opportunities—science, the environment and the outdoors; Classroom issues—the emergence of Science|Environment|Health; Science engagement and communication; Science, environment and sustainability.