Book excerpt: Tasks in Second Language Learning aims to re-centre discussion of the ways in which language learning tasks can help offer a holistic approach to language learning, and to explore the research implications. It relates the broad educational and social science rationale for the use of tasks to the principles and practices of their classroom use. The authors provide a balanced review of research as a basis for exploring a broader research agenda. Throughout, the book offers telling illustration of the contributions of a range of specialists in research, teaching methodology and materials development, and of the authors' own argument.