This PALART volume makes an original addition to the Series as it opens a stimulating window on the Asia-Pacific region of the world by bringing together a great deal of empirical and theoretical new work in Second Language Acquisition within the Processability Theory (PT) framework. Readers will be pleasantly surprised to be able to access, within one publication, so much novel and overview information on SLA while maintaining its focus on PT, its theoretical developments including its 2005 (Pienemann et al.) and 2015 (Bettoni & Di Biase) extensions and how they relate to PT's foundation...