Why this book? This book is specifically designed for learning English for Specific Purposes (ESP) which is intended to students of the Communication Science Study Program. It is designed to help them in learning English which the topics and vocabularies are specifically related to their needs in the communication science. The topics, vocabularies, and exercises are presented in four English skills, namely Reading, Writing, Listening, and Speaking. The topics covered in this book are:Concept of Communication and Its Characteristics; Effective Communication; Interpersonal Communication; Organizational Communication (Part 1: Memo, Instruction Letter, and Order Letter, Billboard, Newspapers, and Social Media); Communication and Globalization; Political Communication; Mass Communication; and Public Speaking (Ceremonial Speech, Informative Speech, Persuasive Speech). For those reasons, this textbook is expected to be the one of the learning media that can help students achieve their learning English competencies.