This book explores second language (L2) learning, teaching and assessment from a comprehensible input (CI) perspective. This focus on the role of input is important for deepening our understanding of interactions between the learner, teacher and the environment as well as of the nature of the learning, teaching and assessment processes. The book takes a blended approach that promotes the intertwining of theory, research and practice in L2 pedagogy and assessment and aims to address the commonly used concept of CI and its role in L2 education. Content includes a comprehensive discussion of the conceptual foundation of CI; a multimodal and dynamic interpretation of CI from numerous perspectives; a critical discussion of well-known L2 acquisition theories and research; a practical examination of the role of multimodal forms of CI in L2 pedagogy; an analytical review of factors to be considered when modifying CI for pedagogical purposes in different settings and an overview of CI in L2 assessment. It will be of interest to students in the fields of L2 learning, teaching and assessment, teachers in second/foreign language settings and researchers of SLA and teacher education.

'Input' or more appropriately 'comprehensible input' is now recognized as an indispensable component of state-of-the-art second language instruction. Language teachers are regularly reminded that processing oral and written input is fundamental to building the learner’s underlying language capacity. Professor Nihat Polat has produced a remarkable volume explaining and contextualizing the theoretical and practical aspects of using input effectively and meaningfully in the language classroom.

Nihat Polat has created a significant update to the concept of comprehensible input. The text provides a systematic, well-organized, wide-ranging, and nuanced overview of the topic. The breadth of information and incorporation of multiple perspectives will guide readers toward a deeper understanding of complex, intertwined teaching and learning processes.

Nihat Polat is an Associate Professor and Associate Dean for Graduate Studies and Research in the School of Education, Duquesne University, USA. He teaches courses on L2 learning and teaching, and curriculum and assessment. He researches in the areas of L2 learning and teaching and L2 teacher education. He has published in numerous peer-reviewed journals and is the Chair of TESOL Applied Linguistics Interest Section (2015-2016).