In compiling this book, each author has been encouraged to bring their own perspectives on their research interest areas, propose some solutions to problems related to the topics under investigation, and recommend some possible further study topics. The main contribution of this book is to give a point of view about local trends and gaps to the postgraduate researchers in their master's or doctorate program in Turkiye. Since each book chapter deals with an understudied phenomenon regarding English language teaching, MA or Ph.D. students in Turkiye can benefit from the chapters to get an idea of the gaps in our field. Therefore, it would be better to say this is a reference book for postgraduate researchers in Turkiye. The book has five chapters organized in the following way: The first four chapters engage with a less-studied topic in ELT in MA theses and Ph.D. dissertations published in Turkiye. The first chapter of the book reviews the self-concept issue in ELT. The second chapter deals with English as a Lingua Franca. The third chapter discusses teacher burnout. The fourth chapter scrutinizes augmented reality in ELT. The fifth chapter gives a brief overview of all postgraduate studies published between the years 2017-2022 in ELT to see the current trends and possible gaps in the field. We hope that both local and global researchers can benefit from this book for their future research studies.