The great Prasaṅgika is Candrakīrti, who wrote commentaries to a number of Madhyamika works. His Prasannapadā commentary to the Madhyamakakārikā is the only complete commentary on Nagarjuna’s principal philosophical work surviving in Sanskrit. Candrakīrti’s independent treatise, the Madhyamakāvatāra, together with its Bhāṣya, an autocommentary, remain in Tibetan and integrate Madhyamika philosophy into the Mahayana spiritual path. The Madhyamakāvatāra and its commentary are the official ‘schoolbooks’ for the study of Madhyamika in Tibetan monastic universities to the present day, and they thus occupy the same role in the Madhyamika curriculum as does the Abhisamayālaṃkāra for the study of the Perfection of Wisdom literature.