How does data transform policy making? Arnaldo and Rafa discuss the importance of data-driven decisions in governance and the state of data in PuertoRico. For the past 17 years, Arnaldo Cruz has worked for the government, private and nonprofit sectors, focused in analytics, program evaluation, finance, and information technology. He is currently the Director of Research and Policy of the Financial Oversight and Management Board of Puerto Rico. the Office of Management and Budget at the City of Chicago, and several other organizations. Arnaldo is co-founder of ABRE Puerto Rico, an organization dedicated to promoting data driven decisions in Puerto Rico. He has also worked for the US Census, the Mayor’s Office of Workforce Development, he was chairman of the board of the Puerto Rico Institute of Statistics, the government entity in charge of establishing the statistical policy for the Commonwealth and is an adjunct professor at Sacred Heart University College of Business. Arnaldo has a Masters in Public Policy, from the Harris School of Public Policy Studies at the University of Chicago. Our Data Science Zoominars feature interactive conversation with data science experts and a Q+A session moderated by Rafael A. Irizarry, PhD, Chair, Department of Data Science at Dana-Farber Cancer Institute.