This deck was used to support Steve's talk at http://power-of-data-2017.swirrl.com/ about how quality data analysis can make for more efficient and effective policy and service delivery. From data monsters, who breathe the fire of expensive licences and hide data in caves, to data engineers who are integral to good data infrastructure, he provides real-world examples of how data analysis has led to a better understanding and measuring the impact of complex real-world problems across authorities.