This text investigates the complex mechanisms of policy formation and implementation within the British political system. Author Simon J. James compiles a diverse array of primary and secondary sources to analyze how power is exercised in Whitehall and Westminster. By utilizing a case-study approach, the book provides a structured framework for understanding the interplay between civil servants, ministers, and the prime minister in the modern era.

Experts and students of political science frequently cite this work as a comprehensive resource for understanding the practical realities of British governance. The inclusion of diverse source materials makes it a valuable reference for those seeking to move beyond theoretical models of policy making.