This document discusses OpenStreetMap (OSM), a collaborative project to create a free editable map of the world. It is made by volunteers who contribute mapping data. OSM has been used for disaster response mapping in the Philippines during typhoons like Ondoy, Sendong, and Hagupit. The document provides examples of different map styles and applications of OSM data, as well as information on how to get involved or ask questions about OSM in the Philippines.