Some reviews on this site complain that the book is hard to follow, so I will address this first. This biography will be tough-going if you have no idea who, say, Spencer Percival was, or Richard Cobden, or how the Crimean War started and what issues it raised in Britain. But basic background on the period - of the kind one would have acquired from reading the Oxford History, for example, or a general work such as Evans's The Forging of the Modern State 1783-1870 - is sufficient for anyone to find this a clear and lively read. If you are a novice to nineteenth-century Britain, moreover, I would ask why you wish to begin with a biography of Palmerston. One just doesn't do Palmerston, who began his career barely after the departure of Pitt and was prime minister well after the Great Exhibition, on the cheap. There are shorter biographies, such as Judd's Palmerston (1975) or Bourne's The Early Years (1982), but they assume the same level of intimacy with contemporary politics and/or are more judgemental in approach, shedding even less light on the period.
Brown has done an admirable job of providing a balanced and yet detailed perspective on this unique British statesman's life and career. The problem with Palmerston is not just that he lived long. He was in one office or another for most of the time between 1806 and 1865, and we was an extremely prolific writer: there is an ocean of documents to deal with. This book is a monumental achievement, weaving as it does between diplomacy and politics, public and private life, local elections and estate management. And the author brings new research to light, such as on his subject's education in Edinburgh and its influence, or on the management of Palmerston's Irish estates, a controversial topic in the context of the 1840s Irish famine. It is written with great fluency, and I like the way it sticks closely to its sources, favouring the use of quotes over paraphrase. This great tome flags just a little bit in Palmerston's second premiership, where stray typos (the word 'not' apparently missing) risk obscuring the point on Italian unification and on the Schleswig-Holstein affair. But these are minor details; Brown provides background, besides, on the European contexts to diplomatic business. Finally, the strength of this biography is that it provides a fresh yet even view of its subject. Palmerston has too often either been portrayed as a Liberal champion (e.g. in Webster's The Foreign Policy of Palmerston (1951)) or as the archetypal gunboat diplomatist, or paradoxically sometimes both at the same time. Brown examines his protagonist's intellectual and ideological outlook, both through private jottings and his public persona. His analysis of Palmerston's often hard-fought (and occasionally lost!) campaigns for local elections is in this sense particularly interesting. And the book achieves consistency between the posturing, the press manipulation, the hard diplomatic bargaining, and Palmerston's avowed political notions. This will remain, for a long time, the reference work on its subject.