The advantage of this book is the use of language that is easier to understand. The title of the book is “Sociolinguistics: Language in Society”. The study material in this book includes material related to language use in society which is divided into 8 chapters. Each chapter consists of several sub-chapters. Each chapter is equipped with a summary of the material and practice questions. The writers hope that there will be input on this book, especially suggestions for development so that it can be used for improvements at the next stage. In addition, we would like to thank all parties who have helped in preparing this textbook.