S2021: Review article on Rong-ston on the Prajñāpāramitā Philosophy of the Abhisamayālaṃkāra, His Sub-Commentary on Haribhadra's "Sphuṭārthā": A Facsimile Reproduction of the Earliest Known Blockprint Edition, from an Examplar Preserved in the Tibet House, New Delhi by David P. Jackson