This book is split up into four sections, dealing with the right, the centre, the left, and the author's "debts", and collects essays published mostly in the London Review of Books, with a few more from the New Left Review (which he formerly edited) and elsewhere.
The highlight of the first section is an essay that deals with what Anderson calls "the intransigent right" (Schmitt, Strauss, Hayek, and Oakeshott), and points out the affinities of their thought, which share an opposition to popular sovereignty, and a possible motivation by the experience of interwar political tumult. This project instantiates itself in the thought of Hayek and Oakeshott as a political theory that demands the state be driven entirely by procedural norms rather than the pursuit of concrete goals.
The middle section ends with a critical investigation of the liberal centre's cheerleading of military adventurism abroad through readings of Rawls, Habermas, and Bobbio. The individual essays on Rawls and Habermas are also quite good, sharp and critical while always meeting those authors on their own terms. They skewer the weakness of any social theory that at once avoids the stringent demands of abstract philosophy while failing to engage with its objects of inquiry as they actually exist.
The third section, dealing with leftist writers, has two particularly good long essays. One is on Robert Brenner, and reads his work on the transition from feudalism to capitalism (which started the "Brenner debate") alongside his more recent work on global economic history after 1945. Similarly, the long essay on Eric Hobsbawm counterpoises his autobiography with his trilogy on the "long nineteenth century" and his long volume on the "short twentieth century", while also serving as a history and a diagnosis of the "vanquished left".
Similarly, the final essay of the book is a biographical piece on his father, "an Anglo-Irishman in China" who worked for the Chinese Maritime Customs Service, but the narrative doesn't shy away from the complicated political contexts that influenced the institution he served, one inextricably bound to the grand triumphs and tragedies of Chinese history in the first half of the twentieth century, with its warlord cliques, foreign imperialists, and unruly citizenry.
What is great about Anderson's writing is that he is never tempted to transform the world of ideas into a sterile arena for sophistry, but is always concerned with the social and historical contexts of those ideas. Thus his essay on the intransigent right ends with an acknowledgement of their lasting influence on conservative governments in the anglophone world, and his critique of Rawls and Habermas is grounded as much on the social realities of the world they purport to describe as on the weaknesses of their theoretical apparatus. Conversely, his admiration for the historical and empirical investigations of Thompson, Brenner, and Hobsbawm does not dissuade him from pointing out alternative theories, interpretations, and possibilities when they might add something to the raw material already unearthed.