This book briefly introduces the main language teaching methodology by providing a brief historical overview along with outlining basic issues in language teaching. It presents students a succinct overview of the main issues, terms used in the literature. The goal is not to be exhaustive but rather to provide a sketchy overview of the basics for the novice reader. The most outstanding feature of the book is its concise description and controversial topics dominating critical debates defining the interlocking dimensions comprising the field of English language teaching. The organization of the book is in fact transparent enough to support student learning about successful handling of exams and interviews by focusing on a myriad of related topics and questions often asked by honorable teachers, interviewers, and professors as one of the fundamental requirements in post graduate university admission tests as well as PhD comprehensive examinations. The sketchy overview of the core topics introduced in 125 key terms makes the book a must-have reference for the readers in applied linguistics.