This work investigates the identity and influence of the small, non-ministerial circle of advisers who facilitated the rise and policy implementation of Margaret Thatcher. John Ranelagh, drawing on his background as a political commentator and insider, shifts the focus away from Thatcher herself to examine the mechanics of her power structure. He argues that the transformation of British governance during the 1980s was driven by a specific group of thirty individuals, including backroom strategists and personal confidants, rather than the traditional Cabinet hierarchy.

The text provides a focused, analytical look at the administrative architecture of the Thatcher era, prioritizing the role of the backroom adviser over the public face of the government. Its scope suggests a specialized interest for readers seeking to understand the granular mechanics of political power and policy execution in late 20th-century Britain.