The World Wealth and Income Database provides access to data on the historical evolution of the world distribution of income and wealth, both within countries and between countries. Currently, the database includes relatively detailed DINA series for the full distribution of both income and wealth for the USA, France and China. Similar series will be added for other developed and developing countries in the future. For most other countries, the database focuses upon top income shares series for over 30 countries, and series on the structure of aggregate national wealth and national income for nearly 20 countries. For more than 190 countries, it includes series on aggregate national income at this stage.