• Sago palms -- Philippines. • Sago palms -- Technological innovations -- Philippines. • Sago palms -- Propagation -- Philippines. What is sago? More than the cassava-sourced tapioca pearls, sago can refer to a wide range of palm species used by inhabitants of Southeast Asia as sources of starch. Chief among these palms is what early naturalists call as the “true sago palm” (Metroxylon sagu Rottb.) which has become the object of many researches due to its potential for enterprise development. Mapping Sago, the first volume in BANWA Monograph Series, brings together scholars from various disciplines in the social, natural, and applied sciences to try to answer some of the important questions in the area of “sago studies” in the Philippines: How do ordinary folks, in the past up to the present, use and process sago? How many sago stands do we have in the country, where can we find them, and how much starch cans these yields? Is there market potential for sago? Mapping Sago looks both backward and into our precolonial past and forward into the future to tease out the many ways we as human beings relate to this palm species whose story, surprisingly, is intimately intertwined with our own.