Theravāda — Pali Canon
The Pāli Tipiṭaka: Vinaya, Sutta (5 Nikāyas), Abhidhamma. The closest record of the historical Buddha's teaching.
Dīgha Nikāya — The Long Discourses
34 long discourses. Includes the famous Brahmajāla, Sāmaññaphala, Mahāparinibbāna, Mahāsatipaṭṭhāna.
38 suttas
Majjhima Nikāya — The Middle-Length Discourses
152 middle-length discourses spanning meditation, philosophy, ethics, psychology.
156 suttas
Saṃyutta Nikāya — The Connected Discourses
Over 2,889 short discourses grouped by topic (aggregates, senses, dependent origination…).
1,822 suttas
Aṅguttara Nikāya — The Numerical Discourses
Over 9,557 discourses grouped by number — Ones, Twos, Threes… up to Elevens.
1,410 suttas
Khuddaka Nikāya — The Minor Collection
A miscellany including the Dhammapada, Udāna, Theragāthā, Jātaka tales…
2,353 suttas
Vinaya Piṭaka — The Discipline Basket
Monastic discipline: 227 bhikkhu rules, 311 bhikkhunī rules, Saṅgha procedures.
958 suttas
Abhidhamma Piṭaka — The Higher Doctrine
7 treatises systematising Buddhist psychology/philosophy.
1,126 suttas