This edited book objects to entrenched biases and redefines discussions surrounding language education and research. Anchored in the emancipatory concept of trans-speakerism (Hiratsuka, 2024a, 2024b, 2025; Hiratsuka et al., 2023a, 2023b), this volume attempts to drive diversity, equity, and inclusion among language users, educators, and researchers on a global scale. It goes beyond the confines of native-speakerism and conventional labels, prioritizing the strengths, interests, and unique qualities of language practitioners and researchers in both professional and private dimensions. This endeavor advocates for a personalized, context-driven approach and empowers language stakeholders to recognize their existing abilities while envisioning their future potential. The significance of curating an edited compilation comprising multifaceted empirical studies by researchers worldwide cannot be overstated. This broad range of research enriches discussions and offers a comprehensive global perspective on relevant issues. Embracing the tenets of trans-speakerism leads to the acknowledgement of the inherent worth of each language practitioner and researcher?irrespective of mother tongues, cultural backgrounds, or professional positions.