The Immunization Summary is an app for visualizing (tables, graphs, maps) data on policies, activities and impact of national immunization systems. These data are reported by WHO & UNICEF member states annually for incidence, coverage and immunization indicators. The WHO UNICEF estimates of national immunization coverage constitute an independent technical assessment of coverage. The population data are provided by the United Nations’ Population Division’s “World Population Prospects – The 2012 Revision.” With the exception of the infant and child mortality figures which are provided by WHO’s “World Health Statistics 2014,” data for 2013. The GNI & GDP data are taken from the “2015 World Bank Development Indicators” online. Data are available from 1980 to 2014 (as of 14 July 2015) for a 195 countries or territories.