The Oxford Dictionary of National Biography covers over 57,000 biographies of persons who have shaped all aspects of the history of Great Britain; portraits are included for one-fifth of the subjects. Living persons are not included. The individual entries also contain references to additional literature. The time period covered reaches back to the 4th century B.C..
The database also contains the complete text of the Dictionary of National Bibliography, published since 1885, including all supplements (if available, they can be opened using the link DNB archive at the corresponding entry to the person).
The Themes section supplements the biographical entries with the categories:
- Reference lists: tabular overviews of regents, officers, award winners, etc.
- Reference groups: overview articles on specific groups (e.g. Metaphysical Poets, Gunpowder Plotters)
- Feature essays: articles on special topics in British history (such as Roman Britain, the Great Fire of London)