This Handbook of English is, in fact, meant for professionals as well as all levels and classes of learners. Having tought English language and literature for long years, I have conceived and designed this volume with a view to improving the communication skills and calibre of all concerned on a comprehensive fool-proof basics. Professionals of all shades, such as, engineers, technologists and business managers and administrators need a fair grasp of functional English, sufficient stock of vocabulary, a knowledge of different parts of speech, roots of words, prefixes and suffixes, different writing and speaking skills and formats. Enough space has been given to all these items in this handbook. In addition, items like videoconferencing, chairing meetings, foreign words and phases that one often comes across, a large number of idioms and phrases in day-to-day use, model formal and informal situational dialogues, public speech making, interview skills, group discussion, job-seeking techniques and phonetics have been amply covered in this volume. It is hoped that this handbook will be of much use to all professionals and learners.