Śrīmad-Bhāgavatam—the foremost of the eighteen Purāṇas, the complete science of God that establishes the supreme position of Lord Kṛṣṇa. It was glorified by Śrī Caitanya Mahāprabhu as the amalam purāṇam, "the purest Purāṇa." It was written by Śrīla Vyāsadeva as his commentary on the Vedānta-sūtra, and it deals exclusively with topics concerning the Supreme Personality of Godhead (Lord Kṛṣṇa) and His devotees. Śrīla Prabhupāda has given Bhaktivedanta purports in English and wonderfully presented it to the modern world, specifically to give a deep understanding of Lord Kṛṣṇa; Also known as the Bhāgavata Purāṇa, this is a work of eighteen thousand verses compiled by sage Vyāsa as his natural commentary on the Vedānta-sūtra. It takes up where the Bhagavad-gītā leaves off. In Bg. 4.9, Lord Kṛṣṇa says that by knowing His transcendental appearance and activities in this world, one becomes free of the cycle of repeated birth and death. Śrīmad-Bhāgavatam recounts with great relish the details of the Lord's appearance and activities, beginning with His puruṣa incarnations and their līlā of cosmic manifestation, and culminating with Kṛṣṇa's own appearance in Vṛndāvana 5000 years ago, and His most sweet rasa-līlā with the His cowherd girlfriends, the gopīs headed by Rādhārāṇī. See Bhagavad-gītā, Caitanya-caritāmṛta, Vedānta-sūtra.