The collection of rare books of the University of Santo Tomas is a priceless legacy of the Dominican priests and missionaries who have worked in the Philippines in the field of Education for almost four hundred years. For the purpose of making known the valuable collection of the UT Rare Books and, hopefully, that they may be put into maximum use, the idea of a catalogue was conceived. The realisation is now on hand with the publication of the first Volume of the Catalogue of Rare Books (1492-1600)