Reflecting on the fact that the national examination in secondary schools in Indonesia, we write this book to fulfill the requirements of understanding and writing text genres for students in secondary schools and higher education. This first edition is the development of the author’s previous book entitled “Generic Text Structure” which contains essay functional text. The essay functional texts in this edition are categorized into three division, they are narrative discourse, descriptive discourse, and argumentative discourse. To update, we now include the short functional texts that are easily found in our daily life.