The Eighteen Lesser Texts, known as the Pathinenkilkanakku in the literature, is a collection of eighteen poetic works mostly created during the post Sangam period (between 100 - 500 CE). The poems of this collection differ from the earlier works of the Eighteen Greater Texts (Patinenmelkanakku), which are the oldest surviving Tamil poetry, in that the poems are written in the venpa meter and are relatively short in length. Naladiyar, having sung by 400 poets, is the only anthology in this collection. Each of the remaining works of the Eighteen Lesser Texts is sung by a single poet. Unlike the works of the Eighteen Greater Texts, most of the books of the Eighteen Lesser Texts deal with morals and ethics.