This is the second volume of proceedings of the Āgama seminars convened by the Āgama Research Group at the Dharma Drum Institute of Liberal Arts (formerly Dharma Drum Buddhist College). On this occasion, the Āgama Research Group met to discuss the early collections of long discourses transmitted by the different Buddhist schools. Thanks to the discovery and ongoing publication of the incomplete Sanskrit Dīrgha-āgama manu¬script from Gilgit, three different versions of the Collec¬tion of Long Discourses are now avail¬able for comparative study: the Pali Dīgha-nikāya transmitted within the Theravāda tradition, the just-mentioned Dīrgha-āgama in Sanskrit, identified as Sar¬vās¬ti¬vāda or Mūlasarvāstivāda, and the Chinese translation of an Indic Dīrgha-āgama (長阿含經), generally considered to be affiliated with the Dhar¬ma¬¬guptakas. The six papers collected here focus on research on these various incarnations of the collections of long discourses in comparative perspective.