As part of the national celebrations of the 125-th birth anniversary of Srinivasa Ramanujan, TIFR has republished a digitally recovered version of the Notebooks of Srinivasa Ramanujan. TIFR has produced two editions: a Collector's Edition, which is a two volume set, hard bound with a specially designed outer box to hold the volumes and a cheaper paper back edition, without the outer box, but in every other respect the same as the Collector's Edition. The paperback edition is available only for sale in India. TIFR itself is distributing the volumes. For more information, click here.