The World Health Organization (WHO) and United NationsHuman Settlements Programme (UN-HABITAT) joint globalreport, Hidden cities: unmasking and overcoming healthinequities in urban settings, exposes the extent to whichcertain city dwellers suffer disproportionately from a wide range of diseases and health problems. This report provides information and tools to helpgovernments and local leaders reduce health inequities in their cities. The objective of the report is not tocompare rural and urban health inequities. Urban healthinequities need to be addressed specifically for they aredifferent in their magnitude and in their distribution.