Jonathan Powell's book The New Machiavelli, which offers insights into the workings of British government from the perspective of a former Chief of Staff to Prime Minister Tony Blair. Powell draws upon his personal experiences and reflections to provide a nuanced understanding of the challenges and opportunities facing prime ministers, including how to wield power, manage cabinet relations, navigate the complexities of the civil service, and navigate international affairs. He also examines the importance of building political alliances, managing the media, and responding to scandals.