Exploring critical developments and challenges in English Language Teaching (ELT) within Asian contexts, this edited volume offers insights into material adaptation, evaluation, innovations, and the role of English language materials towards achieving the sustainable development goals (SDGs). With contributions from experts in Indonesia, Malaysia, Iran, Thailand, Bangladesh, and China, this volume serves as a key resource for understanding the evolving landscape of ELT materials in a diverse cultural setting. Filling a critical gap in the global discourse on ELT materials which is currently rooted in Western perspectives, the book examines current trends and issues in ELT materials specifically within South and Southeast Asia. Chapters provide a platform to highlight localised approaches to material development, explore the intersection of global standards and local contexts, and identify innovative practices that can inform the global ELT community. Ultimately, the book fosters dialogue between regional and global stakeholders in the field. Contributing to a more inclusive understanding of ELT material development, this volume is a key reference for academics, scholars, and researchers in the field of ELT design and development, English Medium Instruction, Asian Education as well as bilingualism. Educators and curriculum designers engaged in English as a Second or Foreign Language (ESL/EFL) contexts will also benefit from this volume.