This book convincingly establishes a new field of enquiry, showing that language teacher psychology - though frequently neglected - really matters! Sarah Mercer and Achilleas Kostoulas have assembled a rich array of expert contributions, uniting hitherto disparate areas in a coherent, ground-breaking collection. The book will inspire new research and action for teacher well-being and learner achievement. * Richard Smith, University of Warwick, UK * In contrast to the study of learners, the study of teachers in the field of second language acquisition has been noticeably rare. In this masterful collection of recent research, Mercer and Kostoulas draw together a compelling rationale for attention to teachers as central players in language learning. The chapters in the book are compulsory reading for anyone wishing to gain deeper insights into language teacher psychology. * Anne Burns, University of New South Wales, Australia * The chapters in this book have succeeded in laying out a rich, colourful and textured landscape of research into language teachers. With its diverse conceptual frameworks and innovative methodologies, the book is bound to become a primary reference for anyone wishing to orient themselves in this terrain and/or contribute to it. * Maggie Kubanyiova, University of Leeds, UK * Language Teacher Psychology demonstrates successfully that a teacher-centered approach within the field of psychology of language learning deserves further attention at both a theoretical and empirical level, recognizing the value of studying psychological constructs as isolated entities, while ultimately providing more holistic, emergent, and situated approaches, which add practical insight to the subject. -- Brian Cullen, Nagoya Institute of Technology, Japan * JALT Journal, 41.1, May 2019 * Heralding language teacher psychology as a movement gaining ascendancy in SLA, the book realistically acknowledges the difficulties of taking on such research while also underscoring its timeliness and exigency. One notably strong aspect of this book is the range of contributors with varied backgrounds and voices who reflect a

broad scope of possibilities and make a strong and concerted argument for further investigation. -- Sharona Moskowitz, Birkbeck College, University of London, UK * International Journal of Applied Linguistics, 2018 * The volume successfully promotes LTP as an important research area in that it introduces theories closely related to LTP research, suggests possible topics for future LTP studies, and exemplifies research methods in the area. -- Honggang Liu, Northeast Normal University, China * Applied Linguistics 2019 *