“Atsushi Iida has for years been the primary, pioneering researcher of haiku poetry reading and writing in English as an additional language. A first-rate researcher, Iida here defines English-language haiku, expands on existing understandings, and unpacks the implications for language learning. This book is a must-have for anyone who wishes to further build on the scholarship of creative writing studies and the scientific study of literature.” -Justin Nicholes, Associate Professor of Rhetoric and Composition, University of Wisconsin-Stout, USA