I conducted this book with the reason to enthusiast of language, linguistics, and global business dynamics. As an academic writer and language educator, I have always been intrigued by the transformative power of language and its role in shaping intercultural communication, particularly within the context of international business. Throughout my academic journey, I have pursued studies in linguistics, language teaching methodologies, and business administration, which provided me with a comprehensive understanding of the multifaceted aspects of this topic. Additionally, my experiences have allowed me to witness firsthand the challenges and opportunities learners face in acquiring English proficiency for business purposes. The motivation behind this study stems from recognizing English as the preeminent language for global business interactions, significantly influencing cross-cultural communication and commercial transactions. I have been captivated by the historical factors that led to the proliferation of English worldwide, as well as the ever-evolving methodologies and approaches employed in teaching English in business contexts.