This document discusses land titles and registration in the Philippines. It defines key terms like land title, land registration, and certificate of title. It describes the different systems of land registration in the country as well as the laws governing land registration. It explains the purpose of land registration and distinguishes between original and subsequent registration. The effects of registration and the nature of land registration proceedings are summarized. The document also discusses acquiring title through public grant, reclamation, and acquisitive prescription. It explains the Regalian doctrine on state ownership of public lands.