The Seminar Studies in History series is a study tool which bridges the gap between textbook and specialist survey. This series of short paperback books provide readers with a comprehensive range of material covering British, European and Russian history, from the Medieval period through to the 20th century.

Each book consists of a brief "Introduction" and/or "Background" to the subject, valuable in bringing the reader up-to-speed on the area being examined, followed by a substantial and authoritative section of "Analysis" focusing on the main themes and issues. There is a succinct "Assessment" of the subject, a generous selection of "Documents" and a detailed bibliography.

The series is growing and evolving, with new several new titles and new editions, updated with current research, published each year.

Barnard examines the complicated events which led to the execution in 1649 of Charles I and then traces the political experimentation which followed. The book shows how the radicalism of those who had made the revolution, notably Oliver Cromwell, was tempered by the urgency of day-to-day tasks. The conquest of Ireland and Scotland, and their incorporation into the British state are examined.