Oxford Portraits are informative and insightful biographies of people whose lives shaped their times and continue to influence ours. Based on the most recent scholarship, they draw heavily on primary sources, including writings by and about their subjects. Each book is illustrated with a wealth of photographs, documents, memorabilia, framing the personality and achievements of its subject against the backdrop of history.

Probably in the life of every one there comes a time when he is inclined to go over again the events, great and small, which have made up the incidents of his work and pleasure, and I am tempted to become a garrulous old man, and tell some stories of men and things which have happened in an active life. In some measure I have been associated with the most interesting people our country has produced, especially in business-men who have helped largely to build up the commerce of the United States, and who have made known its products all over the world. These incidents which come to my mind to speak of seemed vitally important to me when they happened, and they still stand out distinctly in my memory.

There are worse men than John D Rockefeller,' Arena magazine observed at the turn of the century. 'There is probably not one, however, who in the public mind so typifies the grave and startling menace to social order.' The son of a flamboyant bigamist and pedlar of patent medicine, Rockefeller was by then America's richest man, the mastermind and creator of the country's first and most powerful monopoly: the Standard Oil Company. Reaching into every household across America, Standard Oil controlled 90% of all oil refined in the US, as well as its production, transportation, marketing and distribution. The story of Rockefeller is the story of a pivotal moment in modern history: the shift, after the American Civil War, from small-scale business to economy of scale, and the development of the first modern corporation. In Ron Chernow's magisterial work we see this transition in all of its nuances - accompanied by the rise in labour militancy, the tabloid press and large-scale philanthropy. TITAN is a business epic that, by illuminating the past, teaches us much about where we are today.

For more than sixty years, Rockefeller called Cleveland home: it was where he married and raised his children, where he launched his business career, where he kept a secluded retreat, and where he was buried.