The vast collection of poetry, hagiographies, and theological material which makes up what is sometimes referred to as the Tamil Śaiva Siddhānta canon (although it is only actually part of it). Compiled—although probably not in its final form—by Nampi Āṇtār Nampi in the 12th century ce, its contents cover a period from about 500 ce to the mid 12th century. It is divided into eleven ‘holy books’ (tirumuṟais), plus Cēkkiḻār's 12th-century hagiographical work, the Periya Purāṇam (‘Great Purāṇa’). (The entire collection was probably not known as the Tirumuṟai until around the 14th century.) The Tirumuṟai contains the poetry of six Nāyaṉmār and twenty other Śaiva saints. Its first seven books (known since around the 17th century ce as the Tevāram—‘Garland of God’) contain the bhakti hymns attributed to the three Nāyaṉmār, Campantar (Books 1–3), Appar (Books 4–6), and Cuntarar (Book 7). Book 8 contains the works of Māṇikkavācakar; Book 9, various temple songs, known as Tiruvicaippā; Book 10, Tirumūlar's Tirumantiram (6th or 7th century ce); Book 11, a disparate anthology, including works by Kāraikkāl Ammaiyār, Nakkīrar, and Nampi himself; Book 12 is Cēkkiḻār's Periya Purāṇam.