Google Public Data - https://www.google.com/publicdata/directory
The Google research tool, public data platform provides access to a range of publically accessible datasets provided by various international bodies and NGOs.
The Data is sourced from:
Google public data provide a wide range of data on health, financial, socio-economic, labour, census and other data, provided by reputable authorative sources.
The data sits on the Google public data site, but can be explored by using the sites interface, which can filter and visualise the data in many ways.
The platform uses a standard Google Search field
Data visualisation of world literacy data - with the ability to filter the data, in this case selecting what type of data, and a comparison of the countries.
Various datasets related to literacy rates