Entries range in length from just under half of a page for Richard Ryder, home secretary from 1809 to 1812, to almost five pages for Tony Blair. Each individually signed biography concludes with a list of the main sources used in its preparation. For general background information, especially regarding lesser-known figures, the editors relied on The Dictionary of National Biography and Dod's Parliamentary Companion, among other standard British biography reference sources. A comprehensive bibliography appears at the end of the book. Also provided is a "Chronological List of Leaders by Cabinet Office." A small number of black-and-white illustrations accompanies the text.
The volume does an admirable job of pulling together concise biographies of Great Britain's leaders since the early decade of the sixteenth century and presenting them in straightforward prose. It will be a welcome addition to the reference collections of libraries serving researchers with deep interest in British history, politics, and government. However, libraries that do not see heavy traffic in this area may find that sources such as general encyclopedias will serve well enough.