Reference Guide to Writing Across the Curriculum traces the Writing Across the Curriculum movement from its origins in British secondary education through its flourishing in American higher education and extension to American primary and secondary education. The authors follow their historical review of the literature by a review of research into primary, secondary, and higher education WAC teaching and learning. Subsequent chapters examine the relations of WAC to Writing to Learn theory, research, and pedagogy, as well as its interactions with the Rhetoric of Science and Writing in the Disciplines movements. Current issues of theory and practice are followed by a presentation of best practices in program design, assessment, and classroom practices. An extensive bibliography and suggestions for further reading round out this comprehensive guide to Writing Across the Curriculum.