The principal tantra collection of 468 canonical tantras, mainly from the “later spread” of Vajrayāna to Tibet, arranged by level (Toh 360-827).
Tantras of the highest class, divided into “non-dual,” “mother,” and “father,” and within the two latter categories into six “families” of principal deities (Toh 360-478).
Tantras of the Yoga class based mainly on meditational practices, including those emphasizing skillful means followed by those emphasizing wisdom (Toh 479-493).
Tantras of the Conduct class with both meditational and ritual elements, mostly centered on the deities Vairocana, Acala, or Vajrapāṇi (Toh 494-501).
Tantras of the Action class, mainly emphasizing external worship and ritual, and classified into six “families” of principal deities (Toh 502-808).
A group of canonical texts used as dedication prayers and expressions of auspiciousness to conclude the Tantra Collection (Toh 809-827).