全国40以上の大学図書館に所蔵されている斯界の初のレファレンス（ISBN 9780415570633）の9年ぶりの新版。全36章のうち初版の全30章を大幅に改訂。新たに加えた6章は、4技能とコーパス言語学、編者の最新の総括。New in paperback. Hardcover was published in 2021. The volume brings together 35 authoritative articles, divided into ten sections, written by 51 leading specialists from around the world. There are five entirely new chapters covering the four skills: reading, writing, listening and speaking as well as a new entry on corpus linguistics and language testing. The remaining 30 chapters have been revised, often extensively, or entirely re-written with new authorship teams at the helm reflecting new generations of expertise in the field.