Book Review: Sociolinguistics: An Introduction (2nd Edition). By Reza Ghafar Samar: Tarbiat Modarres University Press, 2019. 435 pp. ISBN: 978-600-7589-45-8.

"Sociolinguistics: An introduction" (2nd edition, 2019) is the result of decades of academic endeavor by Dr. Reza Ghaffar Samar in various fields of research, including second language acquisition (SLA), discourse analysis and sociolinguistics, published by Tarbiat Modares University Press. Ghaffar Samar is a former associate professor in the English language department of Tarbiat Modares University. He has published several books in English as well as many research articles in English or Persian. "Sociolinguistics: An introduction" is divided into four sections and fifteen chapters, and each chapter deals with one of the major topics in sociolinguistics with reference to research carried out on Iranian languages. In compiling this book, the author aimed to introduce the new trends and research lines in sociolinguistics to those who are interested, especially students in the field of linguistics. Due to the growing interest of the academic community in the study and research in the field of sociolinguistics, this brief writing is an attempt to introduce and review this book.