This is a book written for language teachers, prospective teachers, students in the language teaching departments and researchers working in this field. This book includes the issues related to language teaching, how to do it effectively and how to focus on different language skills such as listening, speaking, reading and writing in the language classroom. It is believed that this book will facilitate the process of teaching English as a foreign and/or language in different language teaching contexts all around the world. It consists of thirteen chapters which are concerned with important issues to be taken into account while teaching a second and/or foreign language.