Local administrations can increasingly draw on data to decide how they provide urban services, and strengthen communications with the populations they serve. This publication surveys best-practice examples from around the world and explores the development of the Urban95 Data-Driven Policy Tool (harita.kent95.org) to map the situations of families with young children and the services available to them in three Turkish cities – Istanbul, Izmir and Gaziantep. Published by TESEV, the Turkish Economic and Social Studies Foundation, it is available in both English and Turkish.