English Phonetics and Phonology 4th Editioin，新版特色：
1.增加章節介紹如何教授 Phonetics/Phonology、英語不同口音和方言（ie Accents and Dialects）
2.更新Phonetics/Phonology 新理論與新教學法的進展
3.更新附錄書目文獻
4.更新每章節後相關進一步參考書籍以及爭議或被挑戰的學術討論議題、更多練習和教學技巧
5.廣增音調的教學涵蓋層面（ie Tones on Other Words 或 Expressing Attitudes）
6.增加 一個新章節-英語的不同變異種類（ie Geographical Variations 或 Other Sources，且附有對照錄音）
7.教材資源網站 (http://www.cambridge.org/elt/peterroach/) -更多練習、必備 Phonetics/Phonology 字彙小百科（互動式）、Phonetics/Phonology 符號輸入 Know How、
8.相關 Phonetics/Phonology 出版 'Words Alive!' 免費資源鏈結 (http://www.cambridge.org/elt/resources/skills/pron_podcasts.htm)
Since the publication of the first edition in 1983, this course has established itself as the most practical, comprehensive text in the field and become widely used in many parts of the world in universities and other institutions of higher education. This new edition takes into account recent developments in the teaching of phonology. It includes updated references, fuller coverage of intonation, and a new chapter on different varieties of English with illustrative recorded material.
At the end of each chapter in the book there are notes giving information on further reading, discussion of the more challenging issues, written exercises and, where appropriate, suggestions for teachers. In addition the audio CDs include recorded exercises for every chapter which are particularly helpful for non-native speakers. A full answer key is available at the back of the book. Additional exercises and other supporting material are available online.