The Tamil Nationalized and Public Domain Books Collection consist of more than 650 subvolumes (1100 works - 210,000 pages) of seminal Tamil works of the 20th century, spanning a range of subjects, including Tamil literature, folklore, grammar, history, politics, culture, religion, arts, science and technology. Further, the collection consists of dictionaries, lexicons, encyclopedias, and biographies. Pioneering and prominent Tamil writers represented in the collection include poet Bharathidasan, political writer Ve Saminatha Sarma, musicologist Abraham Pandithar, and technology historian A. Irakavan. Tamil Nadu government has released the vast majority of these works to the public domain. Thamizhmann publishers have compiled and published editions of these works over the past 30 years.