1. Introduction 162 2. Emerging Importance of A mdo 163 3. “Collected Works” (Tib. gSung ’bum) as a Barometer of Tibetan Literary Culture 165 4. “Big Data,” Prosopography, and gSung ’bum Studies 168 5. Patterns of gsung ’bum Productions 170 6. Background to the Development 173 7. Conclusion and Postscript 174 Bibliography 175