The book Research Project in TESOL/TEFL, compiled by Dr. Mahmoud M. S. Abdallah, serves as a comprehensive guide for master’s degree students in the field of TESOL/TEFL, focusing on curriculum and instruction. It provides a detailed roadmap for conducting educational research in English language instruction. Structured across several chapters, the book begins with an introduction to the significance of research in improving teaching methodologies and enhancing the learning experience. It covers essential topics such as identifying research problems, formulating research questions and objectives, conducting a literature review, and selecting appropriate research methodologies, including qualitative, quantitative, and mixed methods. The textbook emphasizes practical applications, equipping students with tools to navigate research design, data collection, and analysis. It also provides guidance on presenting findings, academic writing, and ethical considerations in research. Furthermore, the book promotes a reflective approach, encouraging students to engage critically with existing knowledge while contributing innovative insights. With clear examples and hands-on advice, Research Project in TESOL/TEFL is designed to empower aspiring researchers to undertake and complete meaningful research projects that can significantly impact the field of language education. This resource not only supports students in their academic journeys but also aims to foster a culture of inquiry and continuous improvement in TESOL/TEFL research.