To get started with the Data Browser, choose a Category you would like to view data for, expand  the Category, next expand the dataset you would like to view data for. You will then be presented with a list of indicators.

Alternatively you can filter the grid to view datasets just for a specific Category or dataset, by selecting the Category or dataset from the Filter by Category list or by Dataset list respectively.

The More Info link for a description and a summary of the data, its geographical and temporal coverage. The Select Data link will allow you to narrow your search by geographic region, or if available the All Data button will allow you to view all the data for the indicator.

For a explanation of the available geographies visit the Geography FAQ page