This textbook has been designed to meet the needs of B.A., B.Com. and B.Sc. First to Fourth Semesters students for Ranchi University and other Universities in Jharkhand under the recommended National Education Policy 2020. It comprehensively covers the paper, namely, 'Professional Communication Skills'. This book is specially designed for students to have that critical edge over others in the competitive world of global industries and organisations. It is created specifically to suit Undergraduate and other professional students to learn the basics of what they would be expected to do as they advance in their careers. Topics like Eponyms, Concord, Homophones, Paragraph Writing and Proposal Writing are also discussed. Fresh look is given to the contents by adding more exercises on correct uses of parts of speech, tenses, subject verb accord, infinitives, participles, clauses, degrees of comparison, modifiers, sentence connectives, gerunds, punctuations and vocabulary. Articles, Preposition, Tenses, Subject-Verb Accord, the Infinitive, the Participle, Clauses, Degree of Comparison, Transformation of Sentences and Direct and Indirect Speech have been given which are vital to learn and use English effectively. Modifiers, Sentence Connectives, Gerund, Vocabulary, etc. are also included in the book.